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Fluorapatite Siderite & Muscovite

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SCH178557

Fluorapatite Siderite & Muscovite

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.7 × 4 × 3.6 cm
Description

Several flat, gemmy fluorapatite crystals 14mm are scattered over a matrix covered with platy muscovite. Small flattened siderite add color.

Mineral Data
What's on the rock

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
5.0
Streak: 
White
Type Locality: 
Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White
schani

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