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Gyrolite Stilbite & Quartz

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GND33694

Gyrolite Stilbite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 7 × 3.5 cm
Description

This stunning specimen really catches the eye and is very aesthetic and able to be displayed from any angle. The specimen consists of a hemisphere completely covered with white blocky stilbite and micro quartz crystals with balls of gyrolite up to 6 mm, sitting on the fop. Absolutely no damage makes this complete all round value.

Mineral Data
What's on the rock

Gyrolite

Formula: 
NaCa16Si23AlO60(OH)8·14H2O
Strunz: 
9.EE.30
Hardness: 
2.5
Streak: 
White
Type Locality: 
The Storr, Portree, Trotternish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Gondwana Minerals