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Ashcroftine-(Y)

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BCK634087

Ashcroftine-(Y)

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.8 × 1.7 cm
Description

You are bidding on a small sample with a vug full of violet needles of very rare ashcroftine-Y. A very rich sample with thick needles. 

Mineral Data
What's on the rock

Ashcroftine-(Y)

Formula: 
K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8H2O
Strunz: 
9.DN.15
Crystal System: 
Tetragonal
Hardness: 
5.0
Colour: 
Pink
Streak: 
White
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Seller Information

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