Ashcroftine-(Y) : K5Na5(Y,Ca)12Si28O70(OH)2(CO3)8·8H2O
As recorded:
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Photo added to mindat.org
“Sony Nex7, bellows, Mitutoyo M Plan Apo 10x, aperture, Raynox DCR-250 retro, THK linear actor, stack shot control;
Collection and photo Stephan Wolfsried”
Stephan Wolfsried - 3rd March 2015
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