General Information:
Chemical Formula:(Mn++,Ca)(Fe++,Mn++)Mg2Al2(PO4)4(OH)2·8(H2O)
Composition:(Molecular Weight = 767.44 gm)Calcium 1.31 %
CaMagnesium 6.33 %
MgManganese 7.16 %
MnAluminum 7.03 %
AlIron 5.46 %
FePhosphorus 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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