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Gmelinite Calcite

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ZLT1002101

Gmelinite Calcite

Description Tabs

Description
Locality: 
Road Cut SW, Avhellero, Larnaca District, Cyprus
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 2.5 × 1.8 cm
Largest Crystal: 
0.15cm
Description

Hopper crystals of gmelinite. This type of crystals have been found only in one vug and are apperently zonar with a chabazite crystal of the herschelite type as a core which is incomplete epitaxial covered with gmelinite. Two different crystals on the same specimen.

Mineral Data
What's on the rock

Gmelinite

Synonym Of: 

Gmelinite-Ca

Formula: 
(Ca,Na2)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5

Gmelinite-K

Formula: 
(K2,Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5

Gmelinite-Na

Formula: 
(Na2,Ca)[Al2Si4O12]·6H2O
Strunz: 
9.GD.05
Hardness: 
4.5
Group Parent: 
Zeolite Group

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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