Copper ("Spinel"-twins)

Copper ("Spinel"-twins)This 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

sharp faces and good luster

No damage on the top / display side of the piece

small cabinet sized specimen hosts gorgeous compound groups of flattened / stacked rhombohedral crystals of glowing bright pink manganese-bearing Calcite aesthetically sitting atop associated rhombic pinkish-grey Calcite on silvery bladed Lollingite matrix

soft green color

It is pristine on all sides and absolutely water-clear in about 50% of the crystal

lustrous crystals of pale golden color Baryte “blades” associated with small white Dolomite rhombs on blue-grey Chalcedony matrix

one of the most popular non-sulfide or non-carbonate species from the Eagle mine are the now hard to find

bladed crystals on all sides

the photos are good

thin epimorph of Quartz replacing Anhydrite with additional sugary Quartz crystals on minor matrix

This attractive display piece features a few sharp lustrous

or a Bolivian mineral collector