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Actinolite Var Byssolite & Quartz

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MNT164635

Actinolite Var Byssolite & Quartz

Classic Locality

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Description
Locality: 
Sustenhorn, Voralp, Göschenen Valley, Uri, Switzerland
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.2 × 5 × 5.5 cm
Description

Nice alpine 1970s specimen: greenish grey byssolite (var of actinolite) encloses a clear quartz crystal and settles as hair-like fibrous masses on both sides of an amphibolite matrix.

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

Byssolite

Variety Of: 

Amphibole Supergroup

Formula: 
AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hardness: 
0.0
Hardness: 
0.0

Quartz

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

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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