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Bultfonteinite On Diopside

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PMN763974

Bultfonteinite On Diopside

Description Tabs

Description
Locality: 
Shijiangshan Mine, Hexigten Banner, Chifeng City, Inner Mongolia, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2 cm
Largest Crystal: 
1.00cm
Weight: 
10.00gr
Description

As far as I can tell a one-off find of orange bultfonteinite (analysed) on gemmy diopside (analysed) crystals with minor colourless gemmy apophyllite. It's been hard to photograph as it's so lustrous and light bounces everywhere, Rare new stuff with nice contrast.

Mineral Data
What's on the rock

Bultfonteinite

Formula: 
Ca2(HSiO4)F·H2O
Strunz: 
9.AG.80
Hardness: 
4.5
Streak: 
white
Type Locality: 
Bultfontein, Lejweleputswa District, Free State Province, South Africa

Diopside

Formula: 
CaMgSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Streak: 
white