The Lavendulan group is a grouping of minerals containing copper and Chloride bearing arsenate and phosphate minerals.
Lavendulan group members Members of the Lavendulan group include:
Phosphates: Sampleite: NaCaCu5(PO4)4Cl·5H2O Arsenates: Lavendulan: NaCaCu5(AsO4)4Cl·5H2O Zdenĕkite: NaPbCu5(AsO4)4Cl·5H2O
Related minerals Lemanskiite (NaCaCu5(AsO4)4Cl·3H2O) is the trihydrate of Lavendulan, further showing a different morphology.
References
