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Kyanite & Paragonite & Staurolite

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BMM1081216

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Description
Locality: 
Sponda Alp-Pizzo Forno, Chironico Valley, Leventina, Ticino, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 5.4 × 2.6 cm
Description

An absolute classic from pizzo forno. The alpe sponda is also the type locality for the mica paragonite. This is the matrix here! In addition to staurolite up to 2.6 cm, the sample consists also of beautiful, partially transparent kyanite crystals up to 6.2 cm in length. This piece comes from an old collection and was acquired in 1966. The old collection label is included.

Mineral Data
What's on the rock

Kyanite

Formula: 
Al2(SiO4)O
Strunz: 
9.AF.15
Crystal System: 
Triclinic Forms long bladed crystals.
Hardness: 
5.5 - 7.0
Streak: 
Colorless

Paragonite

Formula: 
NaAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Crystal System: 
Monoclinic
Hardness: 
2.5
Type Locality: 
Sponda Alp - Pizzo Forno, Chironico Valley, Leventina, Ticino (Tessin), Switzerland

Staurolite

Formula: 
Fe2+2Al9O6(SiO4)4(O,OH)2
Strunz: 
9.AF.30
Crystal System: 
‎Monoclinic
Hardness: 
7.0 - 7.5
Colour: 
Brown

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Shipping Information

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