Lukrahnite

Lukrahnite


Composition: Ca(Cu,Zn)(Fe3+,Zn)(AsO4)2(OH,H2O)2
Crystal System : Triclinic
Colours: Colourless, yellow
Lustre : Sub-adamantine, resinous, earthy
Hardness : 5
Specific Gravity : 4.18
Year of Discovery: 1999
IMA Number: 1999-030
IMA Status: Approved
Discovered By: Ludger Krahn (German geologist)
Named for: Discoverer
References: Krause et al. (2001)