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Quartz & Amphibole

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MNT670547

Quartz & Amphibole

ex Klaus Böhmfeld, GER
Classic Locality

Description Tabs

Description
Locality: 
Aracuai, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 4.5 × 4.8 cm
Description

Example of rock crystal with fine hair like inclusions of a dark blueish-greenish silicate, probably amphibole. Ex Klaus Böhmfeld (1938-2014) collection. Pre 1993.

Mineral Data
What's on the rock

Quartz

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

Amphibole

Synonym Of: 

Amphibole Supergroup

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

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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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