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Actinolite

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BFM682870

Actinolite

Ex coll. University of Freiburg

Description Tabs

Description
Locality: 
Aletsch Glacier, Fieschertal, Goms, Valais, Switzerland
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
1.5 × 7.5 × 6 cm
Description

A piece of actinolite from an old collection of  Freiburg University. 

The collection is from 1890. 

The actinolite comes with an antique label and an old box.

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Terms & Conditions
Thank you for your interest in my offers!

Payment is possible via Paypal or cash if you pick up the item(s) personally.

If you have any questions please feel free to contact me.

Best regards Matthias