Whiteite-(CaMnMg)

General Information:
 Chemical Formula:
CaMn++Mg2Al2(PO4)4(OH)2·8(H2O)
 Composition:
(Molecular Weight = 755.61 gm)
Calcium 5.30 % Ca
Magnesium 6.43 % Mg
Manganese 7.27 % Mn
Aluminum 7.14 % Al
Phosphorus 16.40 % P 
Hydrogen 2.40 % H 
Oxygen 55.05 % O 
 Empirical Formula:
CaMn2+Mg2Al2(PO4)4(OH)2·8(H2O)
 Environment:
In a pegmatite.
 IMA Status:
Approved IMA
 Locality:
Tip Top pegmatite, Custer, Custer County, South Dakota, USA.
 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:
[???] Indistinct
 Color:
greenish yellow, yellow, light lilac, or pink.
 Density:
2.63
 Diaphaniety:
Transparent
 Habits:
Tabular - Form dimensions are thin in one direction., Pseudo Hexagonal - Crystals show a hexagonal outline., Aggregates - Made of numerous individual crystals or clusters.
 Hardness:
3.5 - Copper Penny
 Luster:
Vitreous (Glassy)
 Streak:
white
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