In archaeology, a hammerstone is a hard cobble used to strike off lithic flakes from a lump of tool stone during the process of lithic reduction.[1] The hammerstone is a rather universal stone tool which appeared early in most regions of the world including Europe, India[2] and North America. This technology was of major importance to prehistoric cultures before the age of metalworking.

various hammerstones
Hard Hammer
An example of a cobble used as a hammerstone


A hammerstone is made of a material such as sandstone, limestone or quartzite, is often ovoid in shape (to better fit the human hand), and develops telltale battering marks on one or both ends. In archaeological recovery, hammerstones are often found in association with other stone tool artifacts, debitage and/or objects of the hammer such as ore.[3][4] The modern use of hammerstones is now mostly limited to flintknappers and others who wish to develop a better understanding of how stone tools were made.


Hammerstones are or were used to produce flakes and hand axes as well as more specialist tools from materials such as flint and chert. They were applied to the edges of such stones so that the impact forces caused brittle fractures, and loss of flakes for example. They were also widely used to reduce the bulk of other hard stones such as jade, jadeite and hornstone to make polished stone tools. A good example is the hornstone found in the English Lake District used to make polished axes during the early Neolithic period, and known as the Langdale axe industry.

Hammerstones were used widely in crushing mineral ores such as malachite during the Chalcolithic period, the earliest part of the Bronze age, and cassiterite prior to smelting of tin. Iron ores would have been crushed to powder in a similar way during the Iron Age. Such crushing was needed to hasten and encourage reduction in the furnaces where charcoal was the main reducing agent.

Other examples of their use include reducing minerals like haematite to powder, for pigment, and crushing of hard nuts, such as hazel nuts, to extract the edible kernels.

See also


  1. ^ Charles Joseph Singer, Richard Raper, Trevor Illtyd Williams, A History of Technology, 1954, Clarendon Press
  2. ^ Neelima Dahiya, Arts and Crafts in Northern India: From the Earliest Times to C. 200 B.C., 1986, D.K. Publishers
  3. ^ Peabody Museum of Archaeology and Ethnology, Papers of the Peabody Museum of Archaeology and Ethnology, Harvard University, 1904
  4. ^ C. Michael Hogan, Los Osos Back Bay, Megalithic Portal, editor A. Burnham (2008)
Alexander Hammerstone

Alexander Rohde (born January 17, 1991), better known by his ring names Alexander Hammerstone or simply Hammerstone is an American professional wrestler. He currently competes in Major League Wrestling where he is the inaugural MLW National Openweight Champion.

Blade (archaeology)

In archaeology, a blade is a type of stone tool created by striking a long narrow flake from a stone core. This process of reducing the stone and producing the blades is called lithic reduction. Archaeologists use this process of flintknapping to analyze blades and observe their technological uses for historical peoples.

Blades are defined as being flakes that are at least twice as long as they are wide and that have parallel or subparallel sides and at least two ridges on the dorsal (outer) side. It is important to note that blade cores appear and are different from regular flaking cores, as each core's conchoidal nature is suited for different types of flaking. Blades are created using stones that have a cryptocrystalline structure and easily be fractured into a smooth piece without fracturing. Blades became the favored technology of the Upper Palaeolithic era, although they are occasionally found in earlier periods. Different techniques are also required for blade creation; a soft punch or hammerstone is necessary for creating a blade.

The long sharp edges of blades made them useful for a variety of purposes. After blades are flaked, they are often incorporated as parts of larger tools, such as spears. Other times, the simple shape and sharpness serves the designed role. Blades were often employed in the impression process of material culture, assisting ancient humans in imprinting ornate designs into other parts of their material culture. Scrapers, used for hide working or woodworking, or burins, used for engraving, are two common such examples.

Cores from which blades have been struck are called blade cores and the tools created from single blades are called blade tools. Small examples (under 12 mm) are called microblades and were used in the Mesolithic as elements of composite tools. Blades with one edge blunted by removal of tiny flakes are called backed blade. A blade core becomes an exhausted core when there are no more useful angles to knock off blades.

Blades can be classified into many different types depending on their shape and size. Archaeologists have also been known to use the microscopic striations created from the lithic reduction process to classify the blades into specific types. Once classified archaeologists can use this information to see how the blade was produced, who produced it, and how it was used.

Chopper (archaeology)

Archaeologists define a chopper as a pebble tool with an irregular cutting edge formed through the removal of flakes from one side of a stone.

Choppers are crude forms of stone tool and are found in industries as early as the Lower Palaeolithic from around 2.5 million years ago. These earliest known specimens were found in the Olduvai Gorge in Tanzania by Louis Leakey in the 1930s. The name Oldowan was given to the tools after the site in which they were excavated. These types of tools were used an estimated time range of 2.5 to 1.2 million years ago.


The Clactonian is the name given by archaeologists to an industry of European flint tool manufacture that dates to the early part of the interglacial period known as the Hoxnian, the Mindel-Riss or the Holstein stages (c. 400,000 years ago). Clactonian tools were made by Homo heidelbergensis.It is named after 400,000-year-old finds made by Hazzledine Warren in a palaeochannel at Clacton-on-Sea in the English county of Essex in 1911. The artefacts found there included flint chopping tools, flint flakes and the tip of a worked wooden shaft along with the remains of a giant elephant and hippopotamus. Further examples of the tools have been found at sites including Barnfield Pit and Rickson's Pit, near Swanscombe in Kent and Barnham in Suffolk; similar industries have been identified across Northern Europe. The Clactonian industry involved striking thick, irregular flakes from a core of flint, which was then employed as a chopper. The flakes would have been used as crude knives or scrapers. Unlike the Oldowan tools from which Clactonian ones derived, some were notched implying that they were attached to a handle or shaft. Retouch is uncommon and the prominent bulb of percussion on the flakes indicates use of a hammerstone.

An "Egyptian verson" of the Clactonian industry was proposed in 1972, based on excavations on the banks of the Nile River, at the 100 foot terrace.


Cobble may refer to:

Cobble (geology), a designation of particle size for sediment or clastic rock

Cobblestone, partially rounded rocks used for road paving

Hammerstone, a prehistoric stone tool

Tyringham Cobble, a nature reserve in Tyringham, Massachusetts, U.S.

Bartholomew's Cobble, a park near Sheffield, Massachusetts, U.S.

Dorothy Sue Cobble (born 1949), American historian


In lithic analysis (a subdivision of archaeology), an eraillure is a flake removed from a lithic flake's bulb of force, which is a lump left on the ventral surface of a flake after it is detached from a core of tool stone during the process of lithic reduction. The mechanics of eraillure formation are related to the propagation of a Hertzian cone of force through the cryptocrystalline matrix of the stone, but the particulars are poorly understood. Eraillures usually form only when a hammerstone is used for lithic reduction, and then only occasionally; use of 'soft' hammer fabricators made from bone, antler, and wood produce different flake characteristics but may also produce an eraillure in rare cases.

Hammerstone Project

The Hammerstone Quarry Project was an expansion of Birch Mountain Resources' Muskeg Valley Quarry in Northern Alberta, north of Fort McMurray, in Fort McKay, where Birch Mountain owned mineral rights on nearly one million acres in the heart of the oil sands region.

The Hammerstone Quarry Project had approximately 1 billion tonnes of proven and probable limestone reserves, making it the largest Quarry in Canada, for use to meet the projected demands for limestone and limestone products in the Athabasca region to the year 2060, where there is a known shortage of quality aggregate and limestone materials. The expansion was to include the aggregate quarry, a lime plant and cement plant. In the 2006 EIA report, Birch Mountain Resources estimated that the Project construction cost would be about $674 million (2006 dollars). Construction was initially proposed to start in 2006 and was targeted for completion in 2040. Birch Mountain Resources modified the processing plant design in 2007 and the resulting construction cost was revised to $578 million. Later, after the transfer of assets to Hammerstone Corp, a subsidiary of Brookfield Asset Management Special Situations Group, indicated that current cost estimates were used in 2009 to amend the Project construction cost to $737 million. Limestone products were to include construction aggregate for concrete and asphalt, as well as limestone-based products for cement and flue-gas desulphurization (FGD) for the oil sands extraction process.

Jacob Fatu

Jacob Fatu is a professional wrestler for Major League Wrestling. He is a member of the Anoaʻi family.

Klondike, Yukon

The Klondike () is a region of the Yukon territory in northwest Canada, east of the Alaskan border. It lies around the Klondike River, a small river that enters the Yukon River from the east at Dawson City.

The Klondike is famed due to the Klondike Gold Rush, which started in 1897 and lasted until 1899. Gold has been mined continuously in that area except for a hiatus in the late 1960s and early 1970s.

The name "Klondike" evolved from the Hän word Tr'ondëk, which means "hammerstone water". Early gold seekers found it difficult to pronounce the First Nations word, so "Klondike" was the result of this poor pronunciation.

Klondike River

The Klondike River (Hän: Tr'ondëk) is a tributary of the Yukon River in Canada that gave its name to the Klondike Gold Rush. The Klondike River has its source in the Ogilvie Mountains and flows into the Yukon River at Dawson City.

Its name comes from the Hän word Tr'ondëk (/ʈʂʼontək/) meaning hammerstone, a tool which was used to hammer down stakes used to set salmon nets.

Gold was discovered in tributaries of the Klondike River in 1896, which started the Klondike gold rush, and is still being mined today.

In Jack London's story "A Relic of the Pliocene" (Collier's Weekly, 1901), this river was mentioned as "Reindeer River". (See Reindeer Lake.)

Lake Wabby

Lake Wabby is a small freshwater, green colored lake. It is located in the Great Sandy National Park on the eastern side of Fraser Island off the coast of Queensland, Australia. The lake is directly adjacent to the Hammerstone Sandblow, which is slowly moving into the lake. Eventually it will disappear under the sand.

Unlike most other lakes on Fraser Island which are too acidic, Lake Wabby provides habitat to several species of fish. Thirteen species have been identified.The lakes is both a window lake and a barrage lake. Barrage lakes form when water flows from a natural spring are blocked by a sandmass. With a maximum depth of 12 m, it is the deepest lake on the island.Lake Wabby has cultural significance to the Butchulla people.

List of Major League Wrestling personnel

Major League Wrestling is an American professional wrestling promotion based in Orlando, Florida. Active wrestlers and on-screen talent appear on MLW Fusion and at live events. Personnel is organized below by their role in Major League Wrestling. Their ring name is on the left, and their real name is on the right. Major League Wrestling refers to its performers as "Fighters" as opposed to the traditional nomenclature "wrestlers" to separate itself from other promotions, along with referring to the traditional position of "Manager" as "Promoter."

While Major League Wrestling has no formal partnerships with other promotions, its contract structure allows many of Major League Wrestling's fighters appear in other companies such as All Elite Wrestling, Impact Wrestling, Lucha Underground, New Japan Pro Wrestling, Lucha Libre AAA Worldwide and Consejo Mundial de Lucha Libre.

Lithic core

In archaeology, a lithic core is a distinctive artifact that results from the practice of lithic reduction. In this sense, a core is the scarred nucleus resulting from the detachment of one or more flakes from a lump of source material or tool stone, usually by using a hard hammer percussor such as a hammerstone. The core is marked with the negative scars of these flakes. The surface area of the core which received the blows necessary for detaching the flakes is referred to as the striking platform. The core may be discarded or shaped further into a core tool, such as can be seen in some types of handaxe.

The purpose of lithic reduction may be to rough out a blank for later refinement into a projectile point, knife, or other stone tool, or it may be performed in order to obtain sharp flakes, from which a variety of simple tools can be made. Generally, the presence of a core is indicative of the latter process, since the former process usually leaves no core. Because the morphology of cores will influence the shape of flakes, by studying the core surface morphology, we might be able to know more information about the dimensional flake attribute, including their length and thickness. Cores may be subdivided into specific types by a lithic analyst. Type frequencies, as well as the general types of materials at an archaeological site, can give the lithic analyst a better understanding of the lithic reduction processes occurring at that site.

Lithic Cores may be multidirectional, conical, cylindrical, biconical, or bifacial. A multidirectional core is the product of any random rock, from which flakes were taken based on the geometry of the rock in any pattern until no further flakes could be removed. Often, multidirectional cores are used in this way until no obvious platforms are present, and then are reduced through bipolar reduction, until the core itself is too small to produce useful flakes. Conical cores have a definite pattern. One flake was removed from a narrow end of the tool stone, and this was then used as the platform to take flakes off in a unifacial fashion all around the edge of the rock. The end result is a cone-like shape. Cylindrical lithic cores are made in a similar fashion, but there is a platform on both ends of the toolstone, with flakes going up and down the side of the cylinder from either direction.

Biconical cores have several platforms around the edge of the stone, with flakes taken alternately from either side, resulting in what looks like a pair of cones stuck together at the bases.Bifacial cores are similar to biconical cores, except that instead of forming a pair of cones, the flakes are taken off in such a way that the core itself grows thinner, without the edges shrinking much. Bifacial cores are usually further reduced into trade bifaces, biface blanks, or bifacial tools. Bifacial cores have been recognized as a technology allowing for efficient material usage(specifically in the creation of edge scrapers) and for their suitability for highly mobile hunter gatherer groups in need of tools made of high quality lithic materials.

Lithic reduction

In archaeology, in particular of the Stone Age, lithic reduction is the process of fashioning stones or rocks from their natural state into tools or weapons by removing some parts. It has been intensely studied and many archaeological industries are identified almost entirely by the lithic analysis of the precise style of their tools and the chaîne opératoire of the reduction techniques they used.

Normally the starting point is the selection of a piece of tool stone that has been detached by natural geological processes, and is an appropriate size and shape. In some cases solid rock or larger boulders may be quarried and broken into suitable smaller pieces, and in others the starting point may be a piece of the debitage, a flake removed from a previous operation to make a larger tool. The selected piece is called the lithic core (also known as the "objective piece"). A basic distinction is that between flaked or chipped stone, the main subject here, and ground stone objects made by grinding. Flaked stone reduction involves the use of a hard hammer percussor, such as a hammerstone, a soft hammer fabricator (made of wood, bone or antler), or a wood or antler punch to detach lithic flakes from the lithic core. As flakes are detached in sequence, the original mass of stone is reduced; hence the term for this process. Lithic reduction may be performed in order to obtain sharp flakes, of which a variety of tools can be made, or to rough out a blank for later refinement into a projectile point, knife, or other object. Flakes of regular size that are at least twice as long as they are broad are called blades. Lithic tools produced this way may be bifacial (exhibiting flaking on both sides) or unifacial (exhibiting flaking on one side only).

Cryptocrystalline or amorphous stone such as chert, flint, obsidian, and chalcedony, as well as other fine-grained stone material, such as rhyolite, felsite, and quartzite, were used as a source material for producing stone tools. As these materials lack natural planes of separation, conchoidal fractures occur when they are struck with sufficient force; for these stones this process is called knapping. The propagation of force through the material takes the form of a Hertzian cone that originates from the point of impact and results in the separation of material from the objective piece, usually in the form of a partial cone, commonly known as a lithic flake. This process is predictable, and allows the flintknapper to control and direct the application of force so as to shape the material being worked. Controlled experiments may be performed using glass cores and consistent applied force in order to determine how varying factors affect core reduction.It has been shown that stages in the lithic reduction sequence may be misleading and that a better way to assess the data is by looking at it as a continuum. The assumptions that archaeologists sometimes make regarding the reduction sequence based on the placement of a flake into a stage can be unfounded. For example, a significant amount of cortex can be present on a flake taken off near the very end of the reduction sequence. Removed flakes exhibit features characteristic of conchoidal fracturing, including striking platforms, bulbs of force, and occasionally eraillures (small secondary flakes detached from the flake's bulb of force). Flakes are often quite sharp, with distal edges only a few molecules thick when they have a feather termination. These flakes can be used directly as tools or modified into other utilitarian implements, such as spokeshaves and scrapers.

Lithic technology

Lithic technology includes a broad array of techniques and styles in archaeology, which are used to produce usable tools from various types of stone. The earliest stone tools were recovered from modern Ethiopia and were dated to between two-million and three-million years old. The archaeological record of lithic technology is divided into three major time periods: the Paleolithic (Old Stone Age), Mesolithic (Middle Stone Age), and Neolithic (New Stone Age). Not all cultures in all parts of the world exhibit the same pattern of lithic technological development, and stone tool technology continues to be used to this day, but these three time periods represent the span of the archaeological record when lithic technology was paramount. By analysing modern stone tool usage within an ethnoarchaeological context insight into the breadth of factors influencing lithic technologies in general may be studied. See: Stone tool. For example, for the Gamo of Southern Ethiopia, political, environmental, and social factors influence the patterns of technology variation in different subgroups of the Gamo culture; through understanding the relationship between these different factors in a modern context, archaeologists can better understand the ways that these factors could have shaped the technological variation that is present in the archaeological record.

MLW National Openweight Championship

The MLW National Openweight Championship is a professional wrestling championship created and promoted by the American professional wrestling promotion Major League Wrestling (MLW). The title was unveiled on April 18, 2019. The current and inaugural champion is Alexander Hammerstone, who his in its first reign as champion.

Stone tool

A stone tool is, in the most general sense, any tool made either partially or entirely out of stone. Although stone tool-dependent societies and cultures still exist today, most stone tools are associated with prehistoric (particularly Stone Age) cultures that have become extinct. Archaeologists often study such prehistoric societies, and refer to the study of stone tools as lithic analysis. Ethnoarchaeology has been a valuable research field in order to further the understanding and cultural implications of stone tool use and manufacture.Stone has been used to make a wide variety of different tools throughout history, including arrow heads, spearpoints and querns. Stone tools may be made of either ground stone or chipped stone, and a person who creates tools out of the latter is known as a flintknapper.

Chipped stone tools are made from cryptocrystalline materials such as chert or flint, radiolarite, chalcedony, obsidian, basalt, and quartzite via a process known as lithic reduction. One simple form of reduction is to strike stone flakes from a nucleus (core) of material using a hammerstone or similar hard hammer fabricator. If the goal of the reduction strategy is to produce flakes, the remnant lithic core may be discarded once it has become too small to use. In some strategies, however, a flintknapper reduces the core to a rough unifacial or bifacial preform, which is further reduced using soft hammer flaking techniques or by pressure flaking the edges.

More complex forms of reduction include the production of highly standardized blades, which can then be fashioned into a variety of tools such as scrapers, knives, sickles and microliths. In general terms, chipped stone tools are nearly ubiquitous in all pre-metal-using societies because they are easily manufactured, the tool stone is usually plentiful, and they are easy to transport and sharpen.

The Book of the Long Sun

The Book of the Long Sun (1993–1996) is a series of four science fantasy novels or one four-volume novel by the American author Gene Wolfe. It is set in the same universe as The Book of the New Sun series that Wolfe inaugurated in 1980, and the Internet Science Fiction Database catalogs them both as sub-series of the "Solar Cycle", along with other writings.The Long Sun story is continued in The Book of the Short Sun (1999–2001), a series of three novels or one in three volumes. In Short Sun the relation to the original New Sun is made clear.

The Mythopoeic Society considered The Book of the Sun as a whole for annual literary awards. It was one of five finalists for the Mythopoeic Fantasy Award in 1997.Locus magazine and the American SF writers considered the volumes separately for "Best Novel" awards.

West Coast Wrestling Connection

The West Coast Wrestling Connection (WCWC) is a professional wrestling organization based in Salem, Oregon. The WCWC has a monthly television taping in Portland, Oregon. These shows are broadcast Saturday nights at 11 p.m. on KPDX-TV (KPDX 49/Comcast 13).

The WCWC was founded by Jeff Manning and Pat Kelley in 2005

This page is based on a Wikipedia article written by authors (here).
Text is available under the CC BY-SA 3.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.