Mineral description : Adelite

Mineral class Phosphates : Vivianite - Skorodite - Triplite group. (Strunz Nr: 7/B.26-10)
Chemical formula CaMg(OH)(AsO4)
Crystal system Orthorombic.
Habitus Massively and derb.
Cleavage  
Hardness 5
Density 3.7
Color Yellow, yellowish green to gray.
Streak  
Luster Resinous.
Description  
Occurance  
Associates  
Notes Type locality is Långban.
Locations A rare mineral.
  • Långban, Värmland. As grey hedyphanelike mineral in cracks in hausmannite bearing dolomite or yellow grains in calcite.
  • Jakobsberg mine, Nordmark, Värmland.

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Last changed : 1998-06-12