Earlandite

General Information:
 Chemical Formula:
Ca3(C6H5O7)·4(H2O)
 Composition:
(Molecular Weight = 570.50 gm)
Calcium 21.08 % Ca
Hydrogen 3.18 % H 
Carbon 25.26 % C 
Oxygen 50.48 % O 
 Empirical Formula:
Ca32(C6)2(H5)2(O7)·4(H2O)
 Environment:
Ocean bottom sample at 2,580 meters.
 Locality:
Weddell sea, Antarctica.
 Name Origin:
Named for Arthur Earland, English oceanographer.
Physical Properties:
 Color:
white or light yellow.
 Density:
1.95
 Habits:
Nodular - Tuberose forms having irregular protuberances over the surface., ,
 Streak:
white
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