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Tschernichite & Stellerite

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GMN637681

Tschernichite & Stellerite

Description Tabs

Description
Locality: 
Mraznica-tető-Sas-kő, Markaz, Mátra Mountains, Heves County, Hungary
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.5 × 1.5 cm
Description

Water clear, pale yellowish blocky crystals in the matrix cacities. Associated with stellerite.

Mineral Data
What's on the rock

Tschernichite

Formula: 
(Ca,Na2)[Al2Si4O12]·4-8H2O
Strunz: 
9.GF.30
Crystal System: 
Tetragonal
Hardness: 
4.5
Streak: 
white
Type Locality: 
Neer Road, Goble, Columbia Co., Oregon, USA

Stellerite

Formula: 
Ca4(Si28Al8)O72·28H2O
Strunz: 
9.GE.15
Hardness: 
4.5
Type Locality: 
Mednyi Island, Commander Islands (Komandorskije ostrova), Bering Sea, Kamchatka Oblast', Far-Eastern Region, Russia...

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