Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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False Amethyst

A variety of Fluorite
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Formula:
CaF2
An old name for cut purple fluorite. [Chester, 1896, 92 - "Dict. Names Min."]


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Unique IdentifiersHide

Mindat ID:
1447 (as False Amethyst)
1576 (as Fluorite)
Long-form identifier:
mindat:1:1:1447:8 (as False Amethyst)
mindat:1:1:1576:5 (as Fluorite)

Chemistry of False AmethystHide

Mindat Formula:
CaF2
Element Weights:
Element% weight
Ca51.333 %
F48.667 %

Calculated from ideal end-member formula.
Elements listed:
Ca, F - search for minerals with similar chemistry

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for False AmethystHide

References for False AmethystHide

Reference List:
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