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Rubellite Lepidolite & Sericite

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TPX506838

Rubellite Lepidolite & Sericite

Classic Locality

Description Tabs

Description
Locality: 
Alvarrões Mine, Seixo Amarelo, Guarda, Guarda District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 5.5 × 3.5 cm
Description

Very nice and aesthetic group of rubellite crystals with lepidolite on a sericite matrix and minor quartz.

 

Mineral Data
What's on the rock

Rubellite

Variety Of: 

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Hardness: 
7
Hardness: 
0.0

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White

Sericite

Variety Of: 

Muscovite

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

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