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0 item @ $0.00  

Muscovite with Pyrite

#PD34674

Muscovite with Pyrite

#PD34674
Availability
Sold
Size
7 x 5 x 3 cm - Sm Cabinet 
Formula
KAl2(Si3Al)O10(OH)2 (RRUFF)
Locality
Lengenbach quarry, Binn Valley, Wallis, Switzerland

Phyllosilicate - Monoclinic - Mica group member. Ordinary (True or Common) Mica - Dioctahderal.

This locality demonstrates the diversity in which Muscovite occurs. At Lengenbach, hydrothermal mineralization of base metals occured in Triassic dolostones in which at least 130 minerals (Mindat) have been identified. Muscovite being just incidental to tht overall selection of rare sulfides and sulfosalts.

On this piece, Muscovite crystals occur as slightly pale green platy crystals.

Muscovite

Formula
KAl2(Si3Al)O10(OH)2 
Crystal System
Monoclinic 
Crystal Habit
Massive - Lamellar, Foliated, Micaceous 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
white, gray, silver white, brownish white, greenish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Sectile 
Hardness
2-2.5 

Data courtesy of Webmineral.

Collection
Phillips Collection
Mineralpedia
View Muscovite
On Dakota Matrix
Previously Sold Muscovite
On Dakota Matrix
Other Available Muscovite
WebMineral
View Muscovite
Mindat
View Muscovite

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