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2317 specimens listed
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Scheelite on Muscovite
stock #6.2-899
Mt. Xuebaoding, Pingwu Co., Mianyang Pref.
Sichuan Province, China
4.3 x 3.4 x 3 CM (miniature)
price: $880
Late Summer 2021

Outstanding miniature with a sharp and glassy Scheelite crystal nestled in Muscovite blades. The Scheelite is translucent to transparent and has the sought-after orange color. There is no damage or chipping but there is some cracking to note near the base which have been stabilized. This is not distracting or easy to find without some magnification. The price has taken this into account. Good Scheelites with fine color have become costly, larger specimens of this quality are often well into the 5 figures. This piece was collected in 2005 while the small mines on the higher reaches of Mt. Xuebaoding were active. More recent finds from Pingwu are found at lower elevation and mostly are a light yellow to brownish. A pretty modern classic.

stock #21.1-339
Cantera Llamas, Duyos, Caravia
Asturias, Spain
2.9 x 1.8 x 1.8 CM (thumbnail)
price: $480
Late Summer 2021

A pair of edge modified cubes of transparent Fluorite in an esthetic cluster. The condition is incredible with textbook perfect form, the color a light violet and the one crystal is tabular. An excellent large thumbnail, it is hard to capture the clarity and form in photos, in person it is especially impressive. The faces appear glass-like and smooth at first but on close inspection with good lighting the surfaces are covered with tiny geometric growth structures. A few very tiny Fluorite cubes are perched on this as well, and there is a shard of snow-like Quartz matrix that adds a nice sparkle. Aside from a small cleave on the underside of the lower crystal (not visible on display) this is perfect from all points of view, competitive quality.

Pyrite - altering to Hematite/Goethite
stock #7-AE-230
Green Monster Mountain, Prince of Wales Island, Prince of Wales Island
Alaska, United States
3.5 x 3.1 x 2.6 CM (small miniature/ large thumbnail (toenail))
price: $90
Late Summer 2021

From the famed Green Monster Mountain (Alaska) a Pyrite crystal partially pseudomorphed by Iron Oxide species. This locale is well-known for fine Epidote but the Pyrite pseudos are seldom seen. The Pyrite on this has good somewhat iridescent luster on some faces. Several faces also have some fissures and and stepped zones. The pyrite form is distinct and the specimen seems to be solid and stable.

Goethite pseudomorph after Pyrite - USA classic locale
stock #7.AE-229
Green Monster Mountain, Prince of Wales Island, Prince of Wales Island
Alaska, United States
2 x 1.6 x 1.2 CM (thumbnail)
price: $330
Late Summer 2021

A perfect thumbnail of a complete undamaged pseudomorph from the famed Green Monster Mountain (Alaska). This is the sharpest example of this replacement I have seen from this locality, though there are very few pieces to compare out there. This is a 360 degree specimen with textbook form and clean edges. One small spot shows a little remaining Pyrite which is surprisingly very lustrous. This is a classic locality for Epidote though the related minerals are much less well-known. Ex. A. Edwards collection, a fine small thumbnail.

Klebelsbergite on Stibiconite with Stibnite, Quartz etc.
stock #17.1-415
Pereta Mine, Scansano, Grosseto Province
Tuscany, Italy
7.2 x 5.5 x 3.8 CM (cabinet)
price: $330
Late Summer 2021

Three dimensional vuggy matrix with several altered Stibnite crystals that are now the matrix for blood red Klebelsbergite crystals. There are also some sprays of colorless needles and small yellow balls that are not identified though we suspect the needles are also Klebelsbergite. Most specimens of this mineral are micromounts and not so well visible as this. The crystals of Stibnite/ Stibiconite reach to a little over 3 CM long and are well-protected in the vugs. Ex collection of Glenn Petrie and Brizzi Gioncarlo (Florence, Italy). The older labels mention Kermesite which is not known from this locality. I can not see anything that looks like this specie and suspect it is an error, but it could be possible in tiny crystals. . The Pereta Mine is not well-known outside of Italy but it is an important and rich old locale that has been the source of many rare Antimony minerals. This is a rich example of several alterations of Stibnite and while very impressive under magnification it is also attractive as a normal, eye visible display specimen.

Mimetite - modern classic
stock #21.1-291
San Pedro Corralitos, Municipio de Casas Grandes
Chihuahua, Mexico
2.8 x 2.3 x 2.7 CM (thumbnail)
price: $690
Late Summer 2021

From San Pedro Coralitos, an older specimen with excellent form. Well-defined bright yellow balls of Mimetite are in both clusters and isolated on contrasting matrix. I have not seen many good thumbnails from this famed locality where most specimens were larger but this one is especially esthetic. In perfect condition on the display side, there is only a small contact on the backside of one ball not visible on display. There is no damage anywhere, this is a competition quality thumbnail.

SOLD Milarite, Quartz and Valencianite
stock #SOLD A7-382-(463)
Valenciana Mine (Mina La Valenciana), Municipio de Guanajuato
Guanajuato, Mexico
8.2 x 6 x 2 CM (cabinet)
price: $0
Late Summer 2021

Several bright yellow Milarite crystals are scattered on a well-crystalized matrix of milky Quartz and sharp Valencianite crystals. This is from the find made decades ago at the Valenciana Mine and this specimen is quite rich, this specimen has more than a dozen crystals reaching up to 5 mm. The Valencianite (a type of Adularia as this is an Orthoclase) is especially sharp and partly transparent. This is complemented with the Quartz crystals which are mixed in and give a nice extra bit of luster.

Fluorite - gemmy
stock #21.1-317
Cantera Llamas, Duyos, Caravia
Asturias, Spain
3.1 x 2.3 x 2 CM (thumbnail)
price: $550
Late Summer 2021

Limpid clear and perfect a single modified cube of light violet Fluorite on a small matrix druse of Quartz. Some faces are perfectly glass-like while other have some etched growth structures. The insides of the cube are fully transparent with no inclusions. From the small but remarkable locality of Cantera Llamas, this is far better than typical for this find, a competition grade thumbnail. The clear cube is more impressive in person as the color and clarity are hard to render on a computer screen.