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- (anthropology/archaeology) a long slender prismatic flake manufactured by indirect percussion or pressure from a prepared core. At least twice as long as it is wide.
- The shape of a solid, as one in which the ratios of breadth to length and thickness to breadth are each less than 2: 3.
- Having the appearance of blades, e.g., flat crystals strongly elongated in one direction.
Source: Dictionary of Mining, Mineral, and Related Terms
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