Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Actinolite & Stilbite

Views:
Watches:
GND96830

Actinolite & Stilbite

Collected by seller in April 2011

Description Tabs

Description
Locality: 
Arkaroola Bore, Arkaroola Region, Flinders Ranges, South Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 6 × 5.2 cm
Description

A pretty combination piece featuring dark green fibrous actinolite with bright orange radiating stilbite. A couple of vughs reveal actinolite forming some gemmy terminated micro crystals inside. Classic material from these 800million year old volcanics.

Mineral Data
What's on the rock

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White

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
Gondwana Minerals