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Chromian Dravite On Fuchsite

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RHT775883

Chromian Dravite On Fuchsite

ex collection Thomas Meyer
Rare Mineral

Description Tabs

Description
Locality: 
Kokka, Outokumpu, North Karelia, Finland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 2.7 × 1.2 cm
Weight: 
19.00gr
Description

Extremely rare tourmaline-/dravite-variety. Dark green crystal on yellowish green fuchsite schist.

Mineral Data
What's on the rock

Chromian Dravite

Variety Of: 

Dravite

Formula: 
Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0
Hardness: 
0.0

Fuchsite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Formula: 
K(Al,Cr)3Si3O10(OH)2
Hardness: 
0.0

Seller Information

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Seller's terms and conditions

Rockhunter does not sell by size or weight. Sizes and weights given are just for the basic orientation of the buyer and shipment planning and might not be exact, even though we're always trying to be as exact as possible.

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