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Helvine

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FFC821778

Helvine

Description Tabs

Description
Locality: 
Huanggang Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3 × 3.7 cm
Largest Crystal: 
1.50cm
Description

Group of very sharp tetrahedral Helvine crystals with a dark brown color and reddish shades. The group is on a matrix made by a blade of white Calcite and a spray of Pyrite can also be noticed. 

From the findings that hit the market about 5-6 years ago establishing a new reference for the specie, that were quickly dried up.

Mineral Data
What's on the rock

Helvine

Formula: 
Mn2+4(Be3Si3O12)S
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Friedefürst Mine, Breitenbrunn, Breitenbrunn District, Erzgebirge, Saxony, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

The item can be returned for whichever reason, provided its original conditions, and within 3 weeksfrom its delivery to the Buyer. In the case of returning, the Buyer will be entitled to the refund of the item price; shipping costs will remain at the Buyer's charge in any case.