Donnayite-(Y) Mineral Data

General Donnayite-(Y) Information
Chemical Formula:	Sr3NaCaY(CO3)6•3(H2O)
Composition:	Molecular Weight = 828.93 gm
	Sodium 2.77 % Na 3.74 % Na₂O
	Strontium 31.71 % Sr 37.50 % SrO
	Calcium 4.83 % Ca 6.76 % CaO
	Yttrium 10.73 % Y 13.62 % Y₂O₃
	Hydrogen 0.73 % H 6.52 % H₂O
	Carbon 8.69 % C 31.86 % CO₂
	Oxygen 40.53 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Sr₃NaCaY(CO₃)₆•3(H₂O)
Environment:	Nepheline syenites.
IMA Status:	Approved IMA 1978
Locality:	Mt. St. Hilare, Quebec, Canada. Link to MinDat.org Location Data.
Name Origin:	Named for Joseph Desire Hubert Donnay (1902-1994), Belgian-American-Canadian crystallographer and minereralogist and Gabrielle (Hamburger) Donnay (1920-1987), American Canadian mine ralogist, McGill Univeristy.
Name Pronunciation:	Donnayite-(Y) + Pronunciation
Synonym:	IMA1978-007