General Information:
Chemical Formula:(Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O)
Composition:(Molecular Weight = 1,069.23 gm)Calcium 0.94 %
CaCerium 9.83 %
CeCopper 35.66 %
CuArsenic 21.02 %
AsHydrogen 1.13 %
H Oxygen 31.42 %
O Empirical Formula: Ce0.75Ca0.25Cu6(AsO4)3(OH)6·3(H2O)
IMA Status:Not IMA Approved (Dana # Added)
Name Origin:Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France.
Physical Properties: Color:bluish, yellow green, or sky blue.
Density:3.72
Diaphaniety:Transparent
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous (Glassy)
Streak:greenish white
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