Copper ("Spinel"-twins) Quartz is probably the most difficult

is probably the most difficult to obtain

and eye-catching “closed” twin of Ferberite with great form

and a surprise discovery from early 2011

blue color cubic crystal of this hard-to-find species on matrix

Great aesthetics and good quality all around

Copper ("Spinel"-twins) Quartz is probably the most difficultThis robust miniature sized display specimen of Native Copper has a dual identity as it features a pair of dramatically different intergrown "Spinel" twins. One side features a group of stout and thick "Spinel" twins which are characterized by their gorgeous smooth crystal faces and hollow negative faces all around. The other side hosts a gentle, elongated, slender "Spinel" twinned group with a more flattened style and graceful surface striations that