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Hackmanite

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BNG1041010

Hackmanite

Fluorescent

Description Tabs

Description
Locality: 
Koksha Valley, Badakhshan Province, Afghanistan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.7 × 2.4 cm
Description

A very nice Fluorescent Hackmanite Crystal from Afghanistan. Hackmanite is unusual because it exhibit optical property know as  tenebrescence a type of reversible photochromism.

Mineral Data
What's on the rock

Hackmanite

Variety Of: 

Sodalite

Formula: 
Na8(Al6Si6O24)Cl2
Strunz: 
9.FB.10
Hardness: 
5.5 - 6.0
Formula: 
Na8Al6Si6O24(Cl2,S)
Hardness: 
0.0

Current price

$

Starting price

$10
(reserve not met) (reserve met)

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Start 10 Apr 18:00
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$10

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Bid History

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