Wawayandaite

General Information:
 Chemical Formula:
Ca12Mn4B2Be18Si12O46(OH,Cl)30 [Ortho·]
 Composition:
(Molecular Weight = 2,523.08 gm)
Calcium 19.06 % Ca
Manganese 8.71 % Mn
Beryllium 6.43 % Be
Silicon 13.36 % Si
Boron 0.86 % B 
Hydrogen 1.08 % H 
Chlorine 4.22 % Cl
Oxygen 46.29 % O 
 Empirical Formula:
Ca12Mn2+4B2Be18Si12O46(OH)27Cl3
 Environment:
Found in a museum specimen of willemite.
 IMA Status:
Approved IMA
 Locality:
Franklin mine, Franklin, Sussex County, New Jersey, USA.
 Name Origin:
Named from the Lenni Lenape Native American word "wawayanda," many or several winding, in allusion to the grossly curved and winding habit of its crystals.
Physical Properties:
 Cleavage:
[100] Perfect
 Color:
colorless or white.
 Density:
3
 Diaphaniety:
Transparent
 Habits:
Platy - Sheet forms (e.g. micas)., ,
 Hardness:
1 - Talc
 Luster:
Pearly
 Streak:
white
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