首页 > Term: pedernal
pedernal
A kind of hard, rock with a glassy opaque appearance. It was a favorite raw material for many prehistoric humans for the manufacture of tools such as knives and scraping implements.
- 词性: noun
- 行业/领域: 人类学
- 类别 体质人类学
- Company: Palomar College
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创建者
- linaza
- 100% positive feedback
(Valladolid, Mexico)