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21 specimens listed
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Quartz - optically clear
stock #20.1-881
Peñas Blancas, San Pablo de Borbur
Boyacá, Colombia
5.3 x 3.7 x 2.2 CM (small cabinet/ large miniature)
price: $380
new year 2021

Some of the world's clearest and most perfect Quartz has come from the finds in the ridge above the Peñas Blancas Emerald Mines in Boyacá, Colombia. This is an incredibly clean highly lustrous example, one of a small carefully selected suite we obtained at the mine. The luster is brilliant and almost impossible to see in a photograph. This zone has recently produced a lot of good to fine Quartz but very close exam finds that there are very few truly perfect examples, nearly all have at least some chips or rough spots on terminations. This is a remarkably limpid and flawless piece that can act as a prism to make rainbows. Nothing like the average material from here, this is textbook perfect. As is sometimes seen at this locale this piece has some extra faces in corners adding some nice modifications.

Quartz included by Epidote
stock #20.1-880
Cisneros, Mun. de Buenaventura
Valle del Cauca, Colombia
4.1 x 3.3 x 2.1 (miniature)
price: $150
new year 2021

A light greenish Quartz that is slightly milky is surrounded by and included with slender Epidote crystals. From a remote locality in the Gold mining areas of the Cauca Valley of Colombia, these greenish Quartz and Epidote have trickled out for several years, never many pieces and usually badly damaged. This is from a small lot we obtained in Colombia in 2018 and is far better than usual. The front or display side offers a large window into the Quartz where the Epidote are like a forest or garden scene. The backside has a clean geometric contact and the condition is overall very good, strong magnification does show some very tiny bruises that are not visible by naked eye, for one of these remarkable crystals this as close to perfect as we have seen. A very different and attractive small Quartz.

Beryl var. Emerald
stock #8.2-387-(SK)
Coscuez Mine
Boyacá, Colombia
6.2 x 4.8 CM (small cabinet/ large miniature)
price: $3250
new year 2021

Classic Colombian Emerald crystal on matrix. Good transparency, the crystal is fairly thick, glassy with basal termination. The color is a very good green but not quite the top superb color which is of course far more expensive. Sits well and stands out in any sort of display. It is very hard to find sizable crystals on matrix that have not been repaired, faked or otherwise unnatural. This crystal is 2.2 x 1.7 CM and is nicely balanced on the matrix. Good condition, there are micro edge chips but no really bad damage, the "bottom end" of the crystal is contacted and does not show a clear termination. This quality is now very hard to get in Colombia, if mined today this would be treated, infused, cut and sold in the gem market. Some good green glass!

Beryl var. Emerald
stock #20.1-301-(LW1367)
Muzo Mine, Muzo, Municipio de Muzo
Boyacá, Colombia
1.2 x 1.1 x .8 CM (thumbnail)
price: $180
new year 2021

A single Emerald from the famed Muzo Mine, this is a gemmy hexagonal crystal with good green color. The crystal has some breakage mostly on the back and lower areas, some scuffs as well as a few inclusions. That said, it is a terminated crystal and a genuine transparent Emerald. Perfection in Emeralds is crazy rare and insanely expensive. This is a cute though not perfect thumbnail at 9.4 carats and is priced below the usual rate for this grade of rough.

Gold - very rare wire form
stock #20.FC-091
Pinto River, Novita Municipality
Chocó, Colombia
2.3 x .9 x .3 CM (thumbnail)
price: $2250


The rarest form f native Gold is this type of wire habit, these are only known from a handful of localities (I can only think of 4 or 5) and specimens are few and highly prized. This piece looks like a much more common Silver wire except for the bright golden patina. From an small but famed find at Choco in Colombia, this specimen comes from an older French collection. Presenting classic form, this slender wire with a hooking top or termination shows a little ropy texture on one side, the color is quite bright. One specimen from this find was the subject of recent research by Dr John Rakovan trying to determine the method by which these form. Careful study shows the exterior is very pure Gold but deeper inside there is a percentage of Silver. It is likely the Silver mixed with the Gold in rare instances may stimulate this type of form.

Fluorite - etched cube with
stock #18.1-540
Peñas Blancas, San Pablo de Borbur
Boyacá, Colombia
3.4 x 2.3 x 1.6 CM (small miniature/ large thumbnail (toenail))
price: $420


A perfectly etched cubic Fluorite with the unique emerald green corners of Penas Blancas. This rare zoning has now been attributed to the same Chromium that colored the world class Emeralds found just a few hundred meters lower on this mountain. This is transparent and mostly colorless like an ice cube with complex crystallized. etched surfaces on all sides. There is no damage or chipping A very fine example that is choice, complete and shows the selective color in the corners perfectly.

Quartz -Yellow Humboldtine inclusions
stock #18.1-629
Cabiche, Municipio de Quípama
Boyacá, Colombia
7.3 x 6.5 x 5.5 CM (cabinet)
price: $950


An incredible new find of Quartz with bright yellow tips that are now known to be inclusions of Humboldtine. We obtain this specimen and a few others in Colombia just over two years ago but the analysis was not validated until recently. This specimen is a radiating group of Quartz crystals on a small shard of matrix, and is in fine condition. The find has made big news in the mineral world and now seems to be fully exhausted, there were very few matrix specimens and most of these were very quickly sold. This specimen has misplaced and not put in our show display, it is one of the few left and we think maybe the only one on the web. Choice and obviously a very rare Quartz.

Albite with Fluorapatite
stock #18.1-447
La Marina Mine, Pauna
Boyacá, Colombia
7.2 x 4.8 x 3.3 CM (cabinet)
price: $80
Late Summer 2018

Albite in sharp, glassy, lustrous and mostly transparent are the majority of the specimen. There are a few scattered pink Apatites, the largest about 1 CM, which are also glassy, transparent and in fine condition. From the great find at La Marina Mine, that became famed for the pink Apatites and later for some of the worlds best Euclase. The Albites were sometimes matrix for both of these species and I think under appreciated on their own, they are superb and showy Feldspars. A choice specimen that is well crystalized on both sides and shows off the Albite more than the Apatite.