General Information:
Chemical Formula:(La,Ca)Cu6(AsO4)3(OH)6·3(H2O)
Composition:(Molecular Weight = 1,068.32 gm)Calcium 0.94 %
CaLanthanum 9.75 %
LaCopper 35.69 %
CuArsenic 21.04 %
AsHydrogen 1.13 %
H Oxygen 31.45 %
O Empirical Formula: La0.75Ca0.25Cu6(AsO4)3(OH)6·3(H2O)
IMA Status:Approved IMA (Dana # Added)
Locality:TL: USA, NM, Lincoln Co, Red Cloud mn
Name Origin:Named for the composition and for Jules Agard, Geologist, Bureau de Recherches Geologiques et Minieres, Orleans, France.
Physical Properties: Color:colorless, yellowish green, or blue.
Density:3.72
Diaphaniety:Transparent
Habits:Acicular - Occurs as needle-like crystals., ,
Hardness:3-4 - Calcite-Fluorite
Luster:Vitreous (Glassy)
Streak:greenish white
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