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Apophyllite & Stilbite

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BMM1081108

Description Tabs

Description
Locality: 
Pashan, Pune District, Maharashtra, India
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6.5 × 3.2 cm
Description

Lustrous bright peach-colored crystals of stilbite sheaves measuring up to 3 cm in length, scattered of colorless and nearly water-clear, highly lustrous apophyllite. Aesthetic and balanced specimen, in excellent condition. Fully crystallized all around and undamaged. Laumontite is also described in the piece and is small present, whitish crystallizations in the cm range. This piece comes from an old collection and was acquired in 1979. The old collection label is included.

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

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Shipping Information

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Austria
6
EU
18
Rest of Europe
20
USA, Canada, Japan, 1 kg
26
Australia, New Zealand, 1 kg
32

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