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.

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行业/领域：人类学
类别 ‎体质人类学
Company: Palomar College
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michael.cen

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行业/领域：休闲食品类别三文治

sándwiches

Un sándwich está formado por uno o más rebanadas de pan con relleno nutritivo entre ellos. Cualquier tipo de pan pan, la crema o el pan, panecillos y ...