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Thomasclarkite-(Y) Horváthite-(Y) & Adamsite-(Y)

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BCK666596

Thomasclarkite-(Y) Horváthite-(Y) & Adamsite-(Y)

Gilles Haineault
Type Locality

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 3.8 × 2.5 cm
Description

You are bidding on a small miniature sample with three rare yttrium-bearing type species on one sample! There are numerous small, yellow blocky crystals of thomasclarkite-Y, a very rich area of white needles of adamsite-Y and on the other end of the sample, a bowtie cluster of horvathite-Y. Not very often you will get three type species all together on one piece! Collected by Gilles Haineault. 

Mineral Data
What's on the rock

Thomasclarkite-(Y)

Formula: 
(Na,Ce)(Y,REE)(HCO3)(OH)3·4H2O
Strunz: 
5.DC.20
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Horváthite-(Y)

Formula: 
NaY(CO3)F2
Strunz: 
5.BD.25
Crystal System: 
Orthorhombic
Hardness: 
4.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Adamsite-(Y)

Formula: 
NaY[CO3]2·6H2O
Strunz: 
5.CC.30
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
White
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Seller Information

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