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Ephesite & Bixbyite

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SYA879475

Ephesite & Bixbyite

Classic Locality

Description Tabs

Description
Locality: 
Postmasburg, Northern Cape Province, South Africa
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 3 cm
Description

Sharp light rose-salmon colored ephesite crystals on dull dark grey bixbyite crystals (up to 8 mm)

Old-time specimen from the 1970s

Mineral Data
What's on the rock

Ephesite

Formula: 
LiNaAl2(Al2Si2O10)(OH)2
Strunz: 
9.EC.20
Crystal System: 
Triclinic
Hardness: 
3.5 - 4.5
Type Locality: 
Gumuch-dagh, Efes (Ephesus), Izmir Province, Aegean Region, Turkey

Bixbyite

Formula: 
Mn3+2O3
Strunz: 
4.CB.10
Hardness: 
6.0 - 6.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Maynard's claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA...

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