Copper ("Spinel"-twin) bi-color I acquired just a few

I acquired just a few of these specimens in 2011 and I honestly thought them to be a common and unassuming associated species i

save for a very small contact on one edge

it’s a very fine Augelite not only from Bolivia

and the best specimens are breathtaking from the standpoint of color

Copper ("Spinel"-twin) bi-color I acquired just a fewA beautiful "Spinel" twinned Copper specimen from the Rocklands Mine in Australia. This doubly terminated, undamaged "floater" features a robust, sharp, well formed elongated twin, which actually shows multiple planes of twinning, highlighted by beautiful repeating negative skeletal crystal face lines on both sides. The rich antique patina on the surface combined with the fantastic crystallization and form make it an eye catching and high quality