Whiteite-(MnFeMg)

General Information:
 Chemical Formula:
(Mn++,Ca)(Fe++,Mn++)Mg2Al2(PO4)4(OH)2·8(H2O)
 Composition:
(Molecular Weight = 767.44 gm)
Calcium 1.31 % Ca
Magnesium 6.33 % Mg
Manganese 7.16 % Mn
Aluminum 7.03 % Al
Iron 5.46 % Fe
Phosphorus 16.14 % P 
Hydrogen 2.36 % H 
Oxygen 54.20 % O 
 Empirical Formula:
Mn2+0.75Ca0.25Fe2+0.75Mn2+0.25Mg2Al2(PO4)4(OH)2·8(H2O)
 Environment:
In pegmatites.
 IMA Status:
Approved IMA
 Locality:
Ilha de Taquaral, Minas Gerias, Brazil.
 Name Origin:
Named for John S. White, Jr. (1933-), formaer editor of the Mineralogical Record and professional curator of minerals and gems.
Physical Properties:
 Cleavage:
[???] Good
 Color:
chocolate brown.
 Density:
2.63 - 2.67, Average = 2.65
 Diaphaniety:
Transparent
 Habits:
Aggregates - Made of numerous individual crystals or clusters., ,
 Hardness:
4 - Fluorite
 Luster:
Vitreous (Glassy)
 Streak:
brownish white
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