Talc mineral sample. This mineral is a hydrated magnesium silicate, formed by metamorphic processes. It usually occurs in fibrous form and ranges in c

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Talc mineral sample. This mineral is a hydrated magnesium silicate, formed by metamorphic processes. It usually occurs in fibrous form and ranges in colour from white to green and greenish grey. Talc is notable for being used as the softest rock on the scale of hardness. It is used in manufacturing, pharmaceuticals and cosmetics. This sample, from near Hospenthal, Switzerland, is 7 centimetres across.

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Size: 3425px × 5138px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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