Clinoptilolite-K Mineral Data

General Clinoptilolite-K Information
Chemical Formula:	(Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12(H2O)
Composition:	Molecular Weight = 2,830.35 gm
	Potassium 6.52 % K 7.85 % K₂O
	Sodium 0.69 % Na 0.93 % Na₂O
	Strontium 1.15 % Sr 1.35 % SrO
	Calcium 0.06 % Ca 0.08 % CaO
	Magnesium 0.16 % Mg 0.27 % MgO
	Manganese 0.02 % Mn 0.03 % MnO
	Aluminum 6.22 % Al 11.74 % Al₂O₃
	Iron 0.06 % Fe 0.08 % FeO
	Silicon 29.15 % Si 62.37 % SiO₂
	Hydrogen 1.71 % H 15.28 % H₂O
	Oxygen 54.27 % O
	______ ______
	100.00 % 99.98 % = TOTAL OXIDE
Empirical Formula:	Na_0.85K_4.72Ca_0.04Sr_0.37Mg_0.19Fe²⁺_0.03Mn²⁺_0.01Al_6.52Si_29.38O₇₂�24(H₂O)
Environment:	Most commonly formed as a devitrification product of silicic volcanic glass from tuffs. Also occurs in cavities in rhyolites, andesites, and basalts.
IMA Status:	Valid Species (Pre-IMA) 1923
Locality:	Decomposed basalt at a high point on ridge running east from Hoodoo Mountain, Wyoming, USA. From an off-shore borehole, Japan (Ogihara and Iijima, 1990). Link to MinDat.org Location Data.
Name Origin:	The name reflects its inclined extinction and supposed similarity in composition to "ptilolite" (mordenite). K modifier added by zeolite nomenclatrue committee.
Name Pronunciation:	Clinoptilolite-K + Pronunciation
Synonym:	Clinoptilolite