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Staurolite With Magnetite Feldspar Almandine Quartz & Muscovite On Schist

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FCM786846

Staurolite With Magnetite Feldspar Almandine Quartz & Muscovite On Schist

Description Tabs

Description
Locality: 
Staurolite Locality, Rockland, Baltimore County, Maryland, United States of America
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
7.3 × 10.2 × 4.3 cm
Largest Crystal: 
1.20cm
Description

Dark brown staurolite crystals to 1.2 cm with red almandine garnets ,magnetite , feldspar and quartz on a shimmering muscovite mica schist. There is sufficient magnetite in the piece to attract a magnet.  

Previous labels supplied (not photographed)
Mineral Data
What's on the rock

Staurolite

Formula: 
Fe2+2Al9O6(SiO4)4(O,OH)2
Strunz: 
9.AF.30
Crystal System: 
‎Monoclinic
Hardness: 
7.0 - 7.5
Colour: 
Brown

Magnetite

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

Feldspar

Group Parent: 
Feldspar Group

Almandine

Formula: 
Fe2+3Al2(SiO4)3
Strunz: 
9.AD.25
Crystal System: 
Isometric
Hardness: 
7.0 - 7.5
Streak: 
White
Type Locality: 
Alabanda, Aydin Province, Aegean Region, Turkey

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Muscovite

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

Schist

Variety Of: 

Metamorphic Rock

Seller Information

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