DINOSAURS ROCK SUPERSTORE
 

Talc Rock Samples

Talc Rock Samples. 10 specimens of this powdery white Talc. Call 1-800-411-DINO 93466) for volume discounts. Talc (derived from the Persian talc via Arabic talq) is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. In loose form, it is the widely used substance known as talcum powder.

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