Parvo-manganotremolite Mineral Data

General Parvo-manganotremolite Information
Chemical Formula:	[ ](CaMn)2Mg5(Si7Al)O22(OH)2
Composition:	Molecular Weight = 841.85 gm
	Potassium 0.05 % K 0.06 % K₂O
	Sodium 1.31 % Na 1.77 % Na₂O
	Calcium 5.38 % Ca 7.53 % CaO
	Magnesium 13.54 % Mg 22.45 % MgO
	Manganese 6.79 % Mn 8.76 % MnO
	Aluminum 1.73 % Al 3.27 % Al₂O₃
	Iron 0.27 % Fe 0.26 % FeO / 0.09 % Fe₂O₃
	Silicon 25.09 % Si 53.67 % SiO₂
	Hydrogen 0.24 % H 2.14 % H₂O
	Oxygen 45.61 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Na_0.44K_0.01Ca_1.13Mn²⁺_0.83Na_0.04Mg_4.69Mn²⁺_0.21Fe²⁺_0.03Fe³⁺_0.01Al_0.06Si_7.52Al_0.48O₂₂(OH)₂
Environment:	Found in manganiferous pod in the Grenville marble of the Arnold open pit. Parvo-manganotremolite often occurs at the rims of parvo-mangano-edenite. Amphibole group
IMA Status:	Approved IMA 2004 (Dana # Added)
Locality:	Arnold mine, Fowler, St. Lawrence Co., New York, USA Link to MinDat.org Location Data.
Name Origin:	Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883).
Synonym:	IMA2004-045