Calcite (var: Manganoan) with Calcite and Lollingite natural Diamond but it's the fact that

but it's the fact that it is so sharp and lustrous that really makes a difference here

but it has such great three-dimensional depth and beautiful crystallization

This piece was collected in March of 2006 and was one of the best pieces to come out of Machacamarca during that time

prismatic crystal of Hubnerite with a few GEM quality Quartz crystals (one of which is doubly terminated)

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

Calcite (var: Manganoan) with Calcite and Lollingite natural Diamond but it's the fact thatOne 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