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Harmotome

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MER510892

Harmotome

Description Tabs

Description
Locality: 
Contrada Segani, Segàn Mountain, San Bortolo di Arzignano, Vicenza Province, Veneto, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
4 × 8 × 4 cm
Largest Crystal: 
0.50cm
Description

Typical sample of harmotome from this locality, with multiple spheres of 5-6 mm on basaltic rock.

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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