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Harmotome

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QRI852653

Harmotome

Former collection Christian Mavris
Classic Locality

Description Tabs

Description
Locality: 
Cattignano Quarry, San Giovanni Ilarione, Verona Province, Veneto, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 3.7 × 2.8 cm
Largest Crystal: 
0.10cm
Weight: 
50.00gr
Description

A rich open vein stuffed with a dozen well-formed harmotome crystals. Best appreciated at 10x magnification, they also make good photomicrography subjects. 

Acquired in the early 2000s, hard material to find nowadays.

Mineral Data
What's on the rock

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Seller Information

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Shipping within 15 days after payment received, unless specified/agreed otherwise.

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