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Ulexite

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PDM932117

Ulexite

Classic Locality

Description Tabs

Description
Locality: 
Kirka, Eskişehir Province, Turkey
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.8 × 6 × 5.3 cm
Weight: 
114.00gr
Description

Aggregate of white ulexite crystals that show a nice yellow to white fluorescence under ultraviolet light. One side is rich in fibrous crystals and gets orange to red under short UV, so it could be probertite.

Acquired in 1990. Ex Dr. Bob Janssens specimen, #571.

Mineral Data
What's on the rock

Ulexite

Formula: 
NaCa[B5O6(OH)6]·5H2O
Strunz: 
6.EA.25
Crystal System: 
Triclinic
Hardness: 
2.5
Type Locality: 
Iquique Province, Tarapacá Region, Chile

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