Caryochroite Mineral Data

General Caryochroite Information
Chemical Formula:	(Na,Sr)3(Fe+++,Mg)10[Ti2Si12O37](O,OH)9•8H2O
Composition:	Molecular Weight = 1,968.92 gm
	Potassium 0.52 % K 0.62 % K₂O
	Sodium 1.39 % Na 1.87 % Na₂O
	Strontium 2.76 % Sr 3.26 % SrO
	Calcium 0.83 % Ca 1.17 % CaO
	Magnesium 1.42 % Mg 2.35 % MgO
	Titanium 4.55 % Ti 7.59 % TiO₂
	Manganese 2.34 % Mn 3.03 % MnO
	Aluminum 0.36 % Al 0.67 % Al₂O₃
	Iron 24.08 % Fe 1.39 % FeO / 32.89 % Fe₂O₃
	Silicon 16.75 % Si 35.83 % SiO₂
	Hydrogen 1.04 % H 9.33 % H₂O
	Oxygen 43.96 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Na_1.19Sr_0.62Ca_0.41Mn²⁺_0.35K_0.26Fe³⁺_7.98Mg_1.15Mn²⁺_0.49(Fe²⁺)_0.38Ti_1.87Fe³⁺_0.13 Si_11.74Al_0.26O_54.1H_20.4
Environment:	Product of supergene alteration (oxidation and dehydration) of a Fe2+-rich protophase locally known as "amorphous greenish grey mineral". Related to nafertisite.
IMA Status:	Approved IMA 2005 (Dana # Added)
Locality:	Umbozero mine, Alluaiv, Lovozero, Kola Peninsula, Russia Link to MinDat.org Location Data.
Name Origin:	The name is taken from the Greek for (nut) and (color) which recalls its hazel-brown color.
Synonym:	IMA2005-031