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0 item @ $0.00  

Ore Minerals 5

Tuesday, 31 January 2017 09:00 AM

A favorite subject amongst geologists/mineral collectors, the Ore Minerals SE will have several ore examples from some of the most famous mines in the world. Take a look at Ore Minerals  4 for a taste of what Ore Minerals 5 will be like.

Trona

#46318
Locality
Green River Formation, Sweetwater Co., Wyoming, United States 
Formula
Na3(HCO3)(CO3)·2H2
Availability
Sold
Size
12 x 11 x 5.5 cm - Cabinet 
Tagged
carbonate  

A compact columnar pure mass which transmits quite a bit of light.

The specimen comes from the Green River Fm, which hold the largest deposits of Trona in the world. The Trona occurs in layered deposits formed from evaporites of the Paleogene period 23-43 MYA. 


Trona

Formula
Na3(HCO3)(CO3)·2H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Columnar, Massive 
Cleavage
Perfect, Indistinct, Indistinct 
Luster
Vitreous (Glassy) 
Color
colorless, gray white, grayish, yellowish, yellowish white 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Sub Conchoidal 
Hardness
2.5 
Collection
Chris van Laer Collection
Mineralpedia
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On Dakota Matrix
Previously Sold Trona
On Dakota Matrix
Other Available Trona
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Mindat
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