Kastningite Mineral Data

General Kastningite Information
Chemical Formula:	(Mn++,Fe++,Mg)Al2(PO4 )2(OH)2•8(H2O)
Composition:	Molecular Weight = 475.72 gm
	Magnesium 0.26 % Mg 0.42 % MgO
	Manganese 7.51 % Mn 9.69 % MnO
	Aluminum 11.34 % Al 21.43 % Al₂O₃
	Iron 3.52 % Fe 4.53 % FeO
	Phosphorus 13.02 % P 29.84 % P₂O₅
	Hydrogen 3.81 % H 34.08 % H₂O
	Oxygen 60.54 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	Mn²⁺_0.65Fe²⁺_0.3Mg_0.05Al₂(PO₄)₂(OH)₂�8(H₂O)
Environment:	Found in the aplitic zone of a zoned P-bearing granitic pegmatite exploited for feldspar for the ceramics industry. An alteration product of primary phosphates. Dimorphic relationsh ip with mangangordonite, and the Al-do
IMA Status:	Approved IMA 1999 (Dana # Added)
Locality:	Silbergrube quarry, Waidhaus, Upper Palatinate (Oberpf�lzer Wald), Bavaria, Germany. Link to MinDat.org Location Data.
Name Origin:	Named after J�rgen Kastning (b. 1932), from Reinbeck bei Hamburg, Germany, amateur mineralogist specializing in phosphate minerals, who discovered the mineral.
Name Pronunciation:	Kastningite + Pronunciation
Synonym:	ICSD 410793
	IMA1997-033