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Isokite

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CR200716

Isokite

Rare Mineral

Description Tabs

Description
Locality: 
Assunção Mine, Aldeia Nova, Sátão, Viseu District, Portugal
Size Range: 
Cabinet (10-18 cm)
Size: 
16 × 11 × 7 cm
Description

Isokite is a rare phosphate mineral usually known as grey crusts from some phosphate pegmatites.

This newly found isokite does not form whitish earthy crusts but massive brownish or greyish masses and veins in contact to triplite.

This is a extremely good and rich specimen of isokite - collected 2004.

Mineral Data
What's on the rock

Isokite

Formula: 
CaMg(PO4)F
Strunz: 
8.BH.10
Hardness: 
4.5 - 5.0
Type Locality: 
Nkumbwa Hill Carbonatite (Nkombwa Hill Carbonatite), Isoka, Isoka District, Muchinga Mts., Northern Province, Zambia