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Thomsonite-Ca with Heulandite

#AH57129

Thomsonite-Ca with Heulandite

#AH57129
Availability
Sold
Size
4.5 x 3 x 2 cm - Miniature 
Formula
NaCa2(Al5Si5)O20·6H2O (RRUFF)
Locality
Goble, Columbia Co., Oregon, United States
Tagged
zeolite

Superb groups of Thomsonite to7mm across showing branch-like crystals. In association is colorless Stilbite.

Thomsonite-Ca

Formula
NaCa2(Al5Si5)O20·6H2
Crystal System
Orthorhombic 
Crystal Habit
Radial, Fibrous, Spherical 
Cleavage
Perfect, Good, None 
Luster
Vitreous (Glassy) 
Color
colorless, greenish, yellow, white, pink 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Fracture
Conchoidal 
Hardness
5-5.5 

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection

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