Simmonsite Mineral Data

General Simmonsite Information
Chemical Formula:	Na2LiAlF6
Composition:	Molecular Weight = 193.89 gm
	Sodium 23.71 % Na 31.97 % Na₂O
	Lithium 3.58 % Li 7.71 % Li₂O
	Aluminum 13.92 % Al 26.29 % Al₂O₃
	Fluorine 58.79 % F 58.79 % F
	- % F -24.76 % -O=F₂
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Na₂LiAlF₆
Environment:	Found in a late-stage breccia pipe that cuts the Zapot amazonitic microcline - topaz - zinnwaldite granitic pegmatite.
IMA Status:	Approved IMA 1998 (Dana # Added)
Locality:	Gillis Range, Mineral County, Nevada, U.S.A. Link to MinDat.org Location Data.
Name Origin:	Named after William B. "Skip" Simmons (b. 1943), University of New Orleans, New Orleans, Louisiana, U.S.A., specialist in the mineralogy and petrology of granitic pegmatites, especi ally those of Colorado and of NYF type
Name Pronunciation:	Simmonsite + Pronunciation
Synonym:	IMA1997-045