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0 item @ $0.00  

Ashcroftine-(Y)

#58665

Ashcroftine-(Y)

#58665
Availability
Sold
Size
2.3 x 1.7 x 1.5 cm - Thumbnail 
Formula
K5Na5Y12Si28O70(OH)2(CO3)8·8H2O (RRUFF)
Locality
Poudrette quarry, Mont Saint-Hilaire, Montérégie, Québec, Canada
Tagged
REE mineral

Tannish acicular crystals in a group about 1mm.

Ashcroftine-(Y)

Formula
K5Na5Y12Si28O70(OH)2(CO3)8·8H2
Crystal System
Tetragonal 
Crystal Habit
Fibrous, Prismatic 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous - Silky 
Color
light violet, pink, pinkish brown, deep violet 
Streak
white 
Class
Tetragonal - Ditetragonal Dipyramidal 
Fracture
Flexible 
Hardness

Data courtesy of Webmineral.

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