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Técpatl (18th day sign of the Aztec calendar) (Image from the Codex Magliabechiano). In the Aztec culture, a tecpatl was a flint or obsidian knife with a lanceolate figure and double-edged blade, with elongated ends.
Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour. Obsidian blades also have difficulty penetrating European mail. The thin, replaceable blades used on the macuahuitl were ...
An obsidian knife made before 5800 BCE. In the Stone Age, bladed tools were made by chipping suitable stones which broke with a conchoidal fracture, a process known as knapping or lithic reduction. The same technique was used to make tools, including knives, out of obsidian, natural volcanic glass.
Prismatic blades are flaked from stone cores through pressure flaking or direct percussion. [2] This process results in a very standardized finished tool and waste assemblage. The most famous and most prevalent prismatic blade material is obsidian, as obsidian use was widespread in Mesoamerica, though chert, flint, and chalcedony blades are not ...
Obsidian can be used to make extremely sharp knives, and obsidian blades are a type of glass knife made using naturally occurring obsidian instead of manufactured glass. Obsidian is used by some surgeons for scalpel blades, although this is not approved by the US Food and Drug Administration (FDA) for use on humans. [ 61 ]
A variety of blade materials can be used to make the blade of a knife or other simple edged hand tool or weapon, such as a sickle, hatchet, or sword. The most common blade materials are carbon steel, stainless steel, tool steel, and alloy steel. Less common materials in blades include cobalt and titanium alloys, ceramic, obsidian, and plastic.
These obsidian blades were used as the Mayans' primary cutting utensil. [12] During the 1890s in California, obsidian blades held significant cultural value and were seen as heirlooms within certain tribes. Many were reluctant to show these blades which were usually hidden away where only the owner knew the location until it was passed down. [13]
The gunstock war club was mostly made from wood, but had a metal blade attached to the end of the club, like a spear point. The club was shaped like the stock of an 18th-century musket . [ 5 ] The design of these gunstock clubs was directly influenced by the firearms that the European settlers used. [ 6 ]
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