Detailed information
Species
Tangdanite
Dimensions
54 x 70 x 28
mm
Weight
120 g
Locality
Bartolomej mining field Novoveská Huta, Spišská Nová Ves Košice Region, Slovakia
Condition
No recorded repairs
Pretty blue-green pearlescent flat-lying sprays seen on joint surfaces and fractures are Tangdanite, the relatively recently (2012) described calcium copper arsenate sulphate hydroxide hydrate species, which was formerly known as Clinotyrolite. The Bartolomej mining field in Slovakia has produced some of the richest specimens of this mineral and this small cabinet sized specimen is a very rich example.