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Forsterite Var Peridot & Magnetite

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PDM599164

Forsterite Var Peridot & Magnetite

Description Tabs

Description
Locality: 
Naran, Kaghan Valley, Mansehra District, North West Frontier Province, Pakistan
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.6 × 3.2 cm
Description

Cluster of well formed, translucent, lustrous green crystals of forsterite (varity peridot) up to 18 mm long, on a white talc matrix, with black euhedral rhombic dodecaheders of  magnetite. Condition is very good.

Found in 1995-98. Ex. A. Gelders specimen, #471.

Mineral Data
What's on the rock

Forsterite

Formula: 
Mg2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic
Hardness: 
7.0
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Peridot

Variety Of: 

Forsterite

Formula: 
Mg2SiO4
Strunz: 
9.AC.05
Hardness: 
7.0
Hardness: 
0.0

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

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