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Hundholmenite-(Y)

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AMM977876

Hundholmenite-(Y)

Rare Mineral

Description Tabs

Description
Locality: 
Stetind Pegmatite, Tysfjord, Nordland, Norway
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.5 × 1.6 cm
Description

Fine specimen with some pale brown hundholmenite-(Y) crystals high in contrast to the matrix. Hundholmenite-(Y) is only known from five localities worldwide. Rare mineral.

Mineral Data
What's on the rock

Hundholmenite-(Y)

Formula: 
(Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48
Strunz: 
9.AJ.35
Hardness: 
5.0 - 6.0
Type Locality: 
Hundholmen, Tysfjord, Nordland, Norway

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Money back guarantee is valid until 14 days after receiving the payment. The refund will be initiated immediately upon receiving the minerals back. Due to the return time, there may be a delay in the refund.