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Laumontite Adularia Chlorite & Epidote

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CLB178161

Laumontite Adularia Chlorite & Epidote

ex collection H. Jungbauer
Classic Locality

Description Tabs

Description
Locality: 
Gneiss Quarries, Arvigo, Calanca, Moesa Region, Grisons, Switzerland
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.6 × 2.8 cm
Description

Some white, stubby laumontite crystals on (also white) adularia crystals with dark green, 'mossy' microcrystal-masses of chlorite and beautiful, little yellow-green epidotes.
Comes with a big index card.

Mineral Data
What's on the rock

Laumontite

Formula: 
CaAl2Si4O12·4H2O
Strunz: 
9.GB.10
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Huelgoat (Locmaria-Berrien), Finistère, Brittany, France

Adularia

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

Chlorite

Synonym Of: 

Chlorite Group

Group Parent: 
Chlorite
Crystal System: 
Monoclinic
Hardness: 
2 - 2.5
Colour: 
Green, Grey, Brown
Streak: 
colourless

Epidote

Formula: 
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Colorless
Type Locality: 
Bourg d'Oisans, Isère, Rhône-Alpes, France...

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