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Effenbergerite in Sugilite

#55279
SOLD
Effenbergerite from Wessels mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa - 55279
Effenbergerite from Wessels mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa - 55279

Effenbergerite in Sugilite

#55279
Availability
Sold
Size
2 x 1.8 x 1 cm - Thumbnail 
Formula
BaCuSi4O10 (RRUFF)
Locality
Wessels mine, Hotazel, Kalahari Mn fields, Northern Cape Province, South Africa
Tagged
copper

Numerous blue crystal grains in purple Sugilite matrix. Ex Gebhard specimen. Effenbergerite is a one locality mineral described in 1994.

Type & Only Locality

Effenbergerite

Formula
BaCuSi4O10 
Crystal System
Tetragonal 
Crystal Habit
Platy 
Cleavage
Perfect, Poor, None 
Luster
Vitreous - Resinous 
Color
blue 
Streak
pale blue 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Brittle 
Hardness
4-5 

Data courtesy of Webmineral.

Special Info
Type & Only Locality
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