Though Calcite is the most abundant carbonate in the earth's crust, and is known to every collector in a variety of colors and forms, it is not a very common gem because the material has perfect cleavage plane running in 3 directions, so only very skilled faceters can create well cut gems. This particular stone is a nice light yellow color, very slightly included gem with an Emerald cut. Due to the birefringence of Calcite, the pictures make the stone look a bit fuzzy, but it looks better in person.

Flowerlike, calenohedral, lustrous and translucent white calcite crystals to 2 cm in length are perched on top of a knob of brilliant and classic galena crystals for this locality. The contrast of color and texture is superb. Pristine!

Complex once you look closely...A rhombohedral, lustrous, white, calcite crystal of 4.5 cm across is emplaced on a sulfide matrix along with a few crystals of lustrous and translucent, colorless fluorite crystals to 1 cm across. Most of the calcite rhomb has then been enveloped by a doubly terminated, large, second-generation calcite crystal that mesaures 8 cm across, exhibiting numerous dog tooth terminations. This crystals is lustrous and translucent, ivory colored; and as a bonus it fluoresces a superb, deep, reddish- orange color. Oddly, the original rhomb has a surface fluorescence of light purple. This is an interesting and aesthetic specimen

A core of intergrown, glassy and gemmy, nearly colorless fluorite crystals (with a faint straw color), to 1.6 cm across is almost covered on both sides by rosettes of lustrous, light-brown calcite crystals, to 2 cm in length. Unusual in its aspect, and complete all around

A glassy and gemmy, pink danburite crystal, measuring 4.8 cm in length, is surrounded by a halo of lustrous and translucent, faintly yellow calcite crystals to 1 cm. The danburite, which is limpid and super gemmy at the termination, exhibits a rich pink color (quite rare from Charcas). THIS IS A SUPERB miniature of way higher than normal quality, and just has a "sparkle" to it that so few possess. It seems a premium price for a "single danburite" and it is, indeed, a relatively high price for a smaller danburite specimen. But it is worth it, in my book

Rare old material, from one of the few places where you get copper in calcite! This matrix specimen features glassy and gemmy, mostly colorless crystals of "nail head spar" calcite, to 2.5 cm in length, which has grown on top of dendritic copper. Some of the copper is invested with an exquisite greenish malachite patina. In a few cases the copper has actually included the calcite, giving the latter a pinkish glow. The calcite fluoresces a beautiful rich orange color, as a bonus. One or two calcite crystals exhibit damage at their terminations but that does not impact the specimen negatively, and it is a relatively large example for this style. They were said to have been found in the 1950s or before, and we have seen few for sale over the years.

A rare combo specimen! Perched aestheically on matrix are four tabular, glassy and gemmy, bright orange-colored, wulfenite crystals, to 1 cm across. Associated with the wulfenite are small clusters of rhombohedral, white calcite that have a green coating of pyromorphite - rare for the locale. A super,combo specimen!