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Milarite On Adularia Var Valencianite

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PDM751777

Milarite On Adularia Var Valencianite

Gem Crystal

Description Tabs

Description
Locality: 
Valenciana Mine, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.5 × 1.6 cm
Description

Dozens of terminated and undamaged apple-green milarite crystals of good lustre, are richly distributed on a matrix of milky white crystals adularia (variety valencianite), coated by transparent quartz crystals.

The associated label reads that is was acquired in 1976 to Marion Godshaw. Ex. René Virlet specimen.

Mineral Data
What's on the rock

Milarite

Formula: 
K2Ca4Al2Be4Si24O60·H2O
Strunz: 
9.CM.05
Hardness: 
6.0
Type Locality: 
Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic
Hardness: 
6 Ortho - clase

Valencianite

Variety Of: 

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6 Ortho - clase
Hardness: 
0.0

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