Calcite (var: Manganoan) with Calcite and Lollingite natural Diamond This piece was mined in

This piece was mined in the mid-1960s and features a well-preserved bivalve mollusk shell which has been not only fossilized but partially replaced by gemmy multi-color Precious Opal

do not pass up this unique and hard-to-find display specimen

but to find a sphere-shaped aggregate like this is exceedingly rare

very very slightly included gem with very good color and a standard "Oval Step" cut

Calcite (var: Manganoan) with Calcite and Lollingite natural Diamond This piece was mined inOne of the new contemporary classics from China are the amazingly stunning pink manganoan Calcites from the Huanggang Mine in Inner Mongolia. These Calcites are so impressive due to the incredible size, quality and color of the crystals making them some of the most significant manganoan Calcites in the world. This three dimensional, small cabinet sized specimen hosts gorgeous compound groups of flattened stacked rhombohedral crystals of glowing bright