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Bustamite & Apophyllite

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PJM43835

Bustamite & Apophyllite

Description Tabs

Description
Locality: 
Zinc Corporation Mine, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.7 × 3.6 × 2.8 cm
Description

Acicular bustamite crystals to 2.2cm with a translucent golden colour pierce through blocky apophyllite crystals to 2.3 cm across which are stacked in an asethetic three dimensional cluster.

Mineral Data
What's on the rock

Bustamite

Formula: 
CaMn2+(Si2O6)
Strunz: 
9.DG.05
Hardness: 
5.5 - 6.5
Streak: 
White
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0
Earthstones Australia

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