Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Kimuraite-(Y) Iimoriite-(Y) Thalenite Allanite-(Y) & Yttrocrasite-(Y)

Views:
Watches:
POL843556

Kimuraite-(Y) Iimoriite-(Y) Thalenite Allanite-(Y) & Yttrocrasite-(Y)

Analysed

Description Tabs

Description
Locality: 
Åskagen Quarry, Persberg, Filipstad, Värmland County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.9 × 1.5 cm
Description

Rich, multimineral specimen of five (!), rare yttrium (Y) minerals from Åskagen Quarry in Sweden. White crust of Kimuraite-(Y) - Ca, Y, Nd carbonate; on massive to crystalline pink to brownish mixture of Thalenite-(Y) and Iimoriite-(Y) - Y silicates; black Allanite-(Y) - Ca, Y, Al, Fe silicate and two, small (~1 mm), lustrous, rounded grain of W-rich (~10% WO3) Yttrocrasite-(Y) - Y, Th, Ca, U, Ti, Fe oxide. Specimen like this was analysed!

Mineral Data
What's on the rock

Kimuraite-(Y)

Formula: 
Ca(Y,Nd)2(CO3)4·6H2O
Strunz: 
5.CC.15
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
white
Type Locality: 
Kirigo, Hizen-cho, Karatsu City (Higashi-Matsuura-gun), Saga Prefecture, Kyushu Region, Japan

Iimoriite-(Y)

Formula: 
Y2[SiO4][CO3]
Strunz: 
9.AH.05
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.0
Colour: 
Buff-tan
Streak: 
White
Type Locality: 
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Fukushima Prefecture, Tohoku Region, Honshu Island, Japan

Allanite-(Y)

Formula: 
{CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Colour: 
Black

Yttrocrasite-(Y)

Formula: 
(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6
Strunz: 
4.DG.05
Hardness: 
5.5 - 6.0
Colour: 
Black
Type Locality: 
Unnamed pegmatite, Burnet Co., Texas, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

We want you to be pleased with your purchase. If for any reason you are not completely satisfied, you may exchange or credit your purchase. If a package is lost or damaged, please report the problem immediately.

Any questions or comments please email us at: [email protected]

Thank you for your bidding!