Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Phengite Pyrite & Tourmaline

Views:
Watches:
SER732872

Phengite Pyrite & Tourmaline

Description Tabs

Description
Locality: 
Campos Verdes, Santa Terezinha de Goiás, Goiás, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 1.7 × 1 cm
Description

a cluster of emerald green phengite, pyrite crystals and tiny blue tourmaline crystals

Mineral Data
What's on the rock

Phengite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Hardness: 
0.0

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Tourmaline

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