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Siderite With Tourmaline & Rutile

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MFM1008714

Siderite With Tourmaline & Rutile

Description Tabs

Description
Locality: 
Alchuri, Shigar District, Gilgit-Baltistan, Pakistan
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.7 × 2.4 cm
Description

A highly lustrous, undamaged, combination specimen of Siderite with Tourmaline and Rutile from Alchuri, old finds, a nice specimen inperson.

Mineral Data
What's on the rock

Siderite

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

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Rutile

Formula: 
TiO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal - Ditetragonal Dipyramidal
Hardness: 
6.0 - 6.5
Type Locality: 
Rutile locality, Horcajuelo de la Sierra, Madrid, Spain