Gmelinite-Na Mineral Data

General Gmelinite-Na Information
Chemical Formula:	(Na2,Ca)Al2Si4O12•6(H2O)
Composition:	Molecular Weight = 2,000.77 gm
	Potassium 0.31 % K 0.38 % K₂O
	Sodium 8.74 % Na 11.79 % Na₂O
	Calcium 0.06 % Ca 0.08 % CaO
	Aluminum 9.99 % Al 18.88 % Al₂O₃
	Silicon 23.15 % Si 49.52 % SiO₂
	Hydrogen 2.17 % H 19.36 % H₂O
	Oxygen 55.58 % O
	______ ______
	100.00 % 100.01 % = TOTAL OXIDE
Empirical Formula:	Na_7.61Ca_0.03K_0.16Al_7.41Si_16.49O₄₈•21.5(H₂O)
Environment:	Alteration product of basalts.
IMA Status:	Valid Species (Pre-IMA) 1825
Locality:	Montecchio Maggiore, Vicenza, Italy. Link to MinDat.org Location Data.
Name Origin:	Named after the German mineralogist and chemist, Christian Gottlob Gmelin (1792-1860) of Turbingen, Germany. Na modifier added by the zeolite nomenclature committee.
Name Pronunciation:	Gmelinite-Na + Pronunciation
Synonym:	Gmelinite