Reference Entry


Michael Allaby

in A Dictionary of Geology and Earth Sciences

Fourth edition

Published in print January 2013 | ISBN: 9780199653065
Published online September 2013 | e-ISBN: 9780191744334

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Mineral, CaF2; sp. gr. 3.2; *hardness 4; *cubic; often yellow, green, blue, or purple, but can be colourless, pink, red, or black, and often colour banded; white ...

Reference Entry.  140 words. 

Subjects: Earth Sciences and Geography

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