Ashcroftine-(Y) is an alkali yttrium calcium carbonate mineral with the chemical formula K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8H2O. It was first identified in southern Greenland and named after British mineral collector Frederick Noel Ashcroft.[1]

Ashcroftine-(Y)
Ashcroftine-(Y) found in Quebec
General
CategoryMineral
Formula
(repeating unit)
K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8H2O
IMA symbolAcf-Y
Identification
ColorPink
Mohs scale hardness5
LusterSub-Vitreous, Waxy, Silky
Specific gravity2.61

References

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