Anapaite

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Anapaite
Anapaite.jpg
Anapaite from Ukraine
General
Category Phosphate minerals
Formula
(repeating unit)
Ca2Fe2+[PO4]2·4H2O
Strunz classification 08.CH.10
Identification
Color Green, greenish white
Crystal habit Tabular crystals, radiating clusters, incrustations, fibrous, and in nodules
Crystal system Triclinic Pinacoidal H-M Symbol (1)
Cleavage perfect on {001}, distinct on {010}
Mohs scale hardness 3.5
Luster Vitreous
Streak white
Diaphaneity Transparent
Specific gravity 2.8
Optical properties Biaxial (+)
Refractive index nα=1.602, nβ=1.613, nγ=1.649
References [1][2][3]

Anapaite is a calcium iron phosphate mineral, Ca2Fe2+(PO4)2·4H2O. It is a mineral that typically occurs in cavities in fossil bearing sedimentary rocks. It is also found in phosphate bearing iron ores.

The spectacular environment that anapaite usually grows in makes it a very popular mineral for collectors. Named after the type locality Anapa, Taman Peninsula, Russia. Some of the best localities are Kertch (Crimea, Ukraine) and Bellaver de Cerdena (Gerona, Spain).

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