Clinoholmquistite Mineral Data

General Clinoholmquistite Information
Chemical Formula:	[ ](Li2Mg3Al2)Si8O22(OH)2
Composition:	Molecular Weight = 794.83 gm
	Potassium 0.20 % K 0.24 % K₂O
	Sodium 1.30 % Na 1.75 % Na₂O
	Lithium 1.63 % Li 3.52 % Li₂O
	Calcium 1.31 % Ca 1.83 % CaO
	Magnesium 5.90 % Mg 9.79 % MgO
	Manganese 0.35 % Mn 0.45 % MnO
	Aluminum 7.50 % Al 14.17 % Al₂O₃
	Iron 5.13 % Fe 6.15 % FeO / 0.50 % Fe₂O₃
	Silicon 28.27 % Si 60.47 % SiO₂
	Hydrogen 0.02 % H 0.20 % H₂O
	Oxygen 46.62 % O
	Fluorine 1.77 % F 1.77 % F
	- % F -0.74 % -O=F₂
	______ ______
	100.00 % 100.10 % = TOTAL OXIDE
Empirical Formula:	Na_0.45Ca_0.05K_0.04Li_1.79Ca_0.21Al_2.21Mg_1.93Fe²⁺_0.68Li_0.08Mn²⁺_0.05Fe³⁺_0.05Si₈O_22.98 F_0.74(OH)_0.18
Environment:	Occurs at the inner contact with lithium pegmatite around oligoclase andesite. Discredited as a mixture of two distinct amphibole compositions, tremolite and a new amphibole end-mem ber, Fluoro-sodic-pedrizite,
IMA Status:	Discredited IMA 2005
Locality:	Tastyg spodumene deposit, Tuva, Siberia, Russia, Link to MinDat.org Location Data.
Name Origin:	Named for its monoclinic crystal structure and relationship with holmsquisite. Approved IMA 1985, Discredited IMA 2005 as being fluoro-sodic-pedrizite.
Synonym:	Discredited - IMA2004-002