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Ashcroftine-(y)

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CFL638054

Ashcroftine-(y)

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 4.5 × 2.8 cm
Weight: 
100.00gr
Description

Rich old specimen of ashcroftine-(Y) microcrystals dispersed all along small cavities on this matrix.  Ex-Carleton University specimen, identified by Dr. Chao (arrow pointer).

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

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