Heulandite-Ca Mineral Data

General Heulandite-Ca Information
Chemical Formula:	(Ca,Na)2-3Al3(Al,Si)2Si13O36•12(H2O)
Composition:	Molecular Weight = 2,825.14 gm
	Potassium 0.60 % K 0.72 % K₂O
	Barium 0.29 % Ba 0.33 % BaO
	Sodium 1.03 % Na 1.38 % Na₂O
	Strontium 0.16 % Sr 0.18 % SrO
	Calcium 5.06 % Ca 7.09 % CaO
	Magnesium 0.01 % Mg 0.01 % MgO
	Aluminum 8.95 % Al 16.91 % Al₂O₃
	Silicon 26.54 % Si 56.78 % SiO₂
	Hydrogen 1.86 % H 16.59 % H₂O
	Oxygen 55.51 % O
	______ ______
	100.00 % 99.99 % = TOTAL OXIDE
Empirical Formula:	Ca_3.57Sr_0.05Ba_0.06Mg_0.01Na_1.26K_0.43Al_9.37Si_26.7O₇₂�26.02(H₂O)
Environment:	Low temperature zeolite found in a wide variety of geologic environments: volcanic rocks, metamorphic rocks, pegmatites, tuffs, and deep-sea sediments.
IMA Status:	Valid Species (Pre-IMA) 1822
Locality:	Glasgow, Strathclyde (Dumbartonshire), Scotland. Link to MinDat.org Location Data.
Name Origin:	Named after the English mineral collector, John Henry Heuland (1778-1856), a British mineral collector and dealer. Ca modifier added by zeolite nomenclature committee.
Name Pronunciation:	Heulandite-Ca + Pronunciation
Synonym:	Beaumontite
	Heulandite
	Lamellar zeolite