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Apophyllite Stilbite & Okenite

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CAM107188

Apophyllite Stilbite & Okenite

Description Tabs

Description
Locality: 
Valea Arsului, Brad, Hunedoara County, Romania
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.1 × 2.2 cm
Largest Crystal: 
1.30cm
Description

A great combo from a very rare locality. This kind of specimens are quite common from India but from an European locality they are scarse. The sample has a rich coverage of colourless to pale greenish apophyllite crystals up to 1.3 cm on a bed of milky white to colourless stilbite crystals and white balls of okenite. A beautiful locality piece.

Mineral Data
What's on the rock

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

Okenite

Formula: 
CaSi2O5·2H2O
Strunz: 
9.EA.40
Hardness: 
4.5 - 5.0
Type Locality: 
Qutdligssat (Kudlisat), Qeqertarsuaq Island (Disko Island), Qaasuitsup, Greenland
Cartils Minerals

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