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2197 specimens listed
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Mcguinnessite
stock #0888-JM-3125
Miners Ridge, Red Mountain, Mendocino County
California, United States
7.2 x 4.9 x 3.3 CM (cabinet)
price: $90
new year 2021

A good sized blocky matrix with Mcguinnessite in rich crystalline crusts on several faces. Ex John Marshall collection, this is from the type locality area of Red Mountain. Close exam shows there are many tiny spheres and cups of blue green mineral, as well as some massive zones. A nice example of this unusual Copper mineral.

Cubanite - classic twinned crystals
stock #AX-29-091
Henderson Number 2, Chibougamau
Quebec, Canada
2 x 1.3 x 1 CM (thumbnail)
price: $1400
new year 2021

Cubanite twin crystals in a cluster with virtually no matrix. In fine condition as seen, such good Cubanite crystals have become quite rare as it has been over two decades since the last of this world class find. This one shows excellent golden luster and form, the largest crystal is a full sixling twin. It is very unlikely there will ever be more of this quality found. There are several localities in the world for this mineral but any crystals are very rare and almost all are micros. These Canadian specimens are the by a wide margin the best in the world, and good twins are especially scarce now.

SOLD Paradamite
stock #SOLD 20.1-897-(ZSPRA4105)
Mina Ojuela, Mapimi
Durango, Mexico
4 x 2.8 x 1.3 CM (miniature)
price: $0
new year 2021

Miniature specimen densely covered with bright, glassy crystals of Paradamite. A choice piece of this highly desired rare species from Ojuela. This specimen has been in the J.A. Dague, Dr. Herman March and the Terry Szenics collections. In fine condition, the crystals are very sharp and gem clear. Older specimen from the early find, the matrix is typical gossan but stable and solid without any crumbling.

Digenite with Pyrite and Quartz
stock #0445-JM-2361
Leonard Mine, Butte, Silver Bow County
Montana, United States
7.7 x 6.1 x 3.8 CM (cabinet)
price: $540
new year 2021

A choice and classic Butte specimen of Digenite crystals on a contrasting matrix. Normally Digenite is an unattractive sooty black rarity, loved only by serious Sulphide lovers (like us). This specimen is very much nicer, and actually displays well. These crystals are quite good sized, and are well set on a sparkling bright contrasting matrix. The crystals of Digenite are usually rather crude and these are too, but still have a distinct form showing structure. The largest crystal is about 1.5 CM across. Contrasts well with the sharp and bright golden Pyrite. In excellent condition, this is ex John Marshall Collection with his collection card. He obtained this in 1979 from A.L McGuinness and that label is also included.

Fluorapatite with Elbaite
stock #20.1-085
Pederneira Mine, Sao Jose da Safira, Doce Valley
Minas Gerais, Brazil
6.3 x 4.3 x 4.7 CM (cabinet)
price: $1650
new year 2021

A very fine, super colorful and very unusual Apatite from the famed Pederneira Mine. The Apatite crystals show several generations of growth and color zoning quite different from the tourmaline the mine is famed for. This specimen also has a bi-colored, doubly terminated Elbaite crystal on the backside that is 4.7 CM long, a nice addition. The Apatites have sharp flat terminations and colors zones in purple, blue, orange-red and some dark green. These also show well some selective growth and etching with areas of re-crystallization. This makes for a complex and especially interesting presentation that looks fine from several angles. Excellent condition with no damage, this is the best Apatite I have seen from Pederneira, and would be a fine piece from anyplace. Vividly fluorescent with a zoned responses corresponding with the daylight color areas.

Elbaite - multi-color - on Cleavelandite
stock #19.1-014
Stak Nala, Haramoush Mountains
Gilgit-Baltistan, Pakistan
4.3 x 4 x 2.8 CM (miniature)
price: $1350
new year 2021

A fantastic blue cap Tourmaline . The main crystal with four distinct bright colors dominates this esthetic miniature. The smaller side crystal is also a blue cap with three colors and a large percentage of bright pink. In perfect, undamaged condition, when examined under good magnification even more color zones can be seen as faint areas between the main parts. From Stak Nala which is one of the world's best localities for fine Tourmaline. From time to time some exotic and uncommon color combinations like this are found there. The dark area in the middle is actually a dark green when backlit with strong illumination. A fine addition to any suite of gem crystals or tourmaline collection.

Wulfenite on Dolomite
stock #19.1-267
Tsumeb
Otjikoto Region, Namibia
2.3 x 1.8 x 1.6 CM (thumbnail)
price: $250
new year 2021

Wulfenite in isolated crystals are nicely perched in tiny Dolomite crystals. The Wulfenite habit is the beveled edge type with a lustrous orange color. A choice thumbnail from the William Severance collection (his label is included). Bill has always had excellent taste and high standards for esthetics, and this piece shows that good taste well. Tsumeb has been the source of many forms of Wulfenite but this particular style, color, habit and overall look is unique to Tsumeb and instantly recognizable.

Brazilianite with Cleavelandite
stock #8.1-284
Telirio Claim, Linopolis, Divino das Laranjeiras, Doce Valley
Minas Gerais, Brazil
5.7 x 5.4 x 3.7 CM (cabinet)
price: $2600
new year 2021

Large, textbook perfect and lustrous Brazilianite from the find in 2009 at Telirio. This is a cluster of fine, green to yellow colored Brazilianites with the largest crystal 4.5 CM tall and relatively thick. The condition is perfect and the specimen can display well from several angles. Most pieces of this find were the more common slender habit but there were a few that had this fatter form looking more like the very early finds decades ago. This piece has that form and the crystals are all fully transparent. In person the color is a bit more vivid and with super glassy luster. Sourced in Brazil at the time of the find from the late Dr. Luis Menezes. Luis was an amazing mineralogist and the man responsible for many of the greatest Brazilian specimens for decades.