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Gallery 2 Smaller Specimens |
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P-092 Pyroxmangite with Cummingtonite $45 Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais, Brazil 4.6 x 2.6 x 3.4 cm A partial crystal of the uncommon manganese mineral, Pyroxmangite, that is covered on one face by a mat of the magnesium-iron-manganese amphibole mineral, Cummingtonite. Pyroxmangite is often confused with Rhodonite. Pyroxmangite is the high-pressure, low-temperature polymorph of Rhodonite, both of which are manganese silicates.
R-041 Rhodochrosite & Pyrite $65 Emma Mine, Butte, Butte District, Silver Bow County, MT 3.5 x 3.5 x 2.3 cm This specimen features pink crystals of Rhodochrosite measuring up to 1.6 cm in size and accented by tiny crystals of Pyrite. Butte Rhodochrosites are true US classics, mostly coming out over 50 years ago.
H-079 Hydroxylapatite pseudomorph after Hemimorphite $50 Astillero Mine, Mapimí, Municipio de Mapimí, Durango, Mexico 4.1 x 3.3 x 2.3 cm Hydroxylapatite pseudomorphs after tabular hemimorphite blades are rare from this very obscure Mapimí area mine, near the famed Ojuela Mine. A sculptural dense cluster of bladed brown and tan-colored pseudomorphs is accented with a tan botryoid of Apatite. The large pseudomorph blade is 1.7 cm and the Apatite botryoid is 4 mm. A fascinating and rare pseudomorph combination. This material was mined in the 1960s.
R-040 Rutile SOLD Tormiq Valley, Haramosh Mountains, Skardu District, Baltistan, Gilgit-Baltistan, Pakistan 4.5 x .8 x .4 cm This prism of Rutile is a rather large example of this species as far as Pakistan is concerned. Where Rutile is usually only found in crystals 1.5-2 cm in size, This crystal shows some red in good lighting conditions and is undamaged.
P-090 Pyrite nodule $65 Sayreville, Middlesex County, New Jersey 4 x 3.6 x 3.5 cm A rare and very old specimen. These nodules of crystallized Pyrite were found in the clay pits of Sayreville, New Jersey. It is composed of crude cubic crystals with octahedral-modified corners. This is a very large specimen for the locality.
P-093 Plumbogummite on Pyromorphite $45 Yangshuo Mine, Guilin Prefecture, Guangxi Zhuang Region, China 2.5 x 1.7 x 1.1 cm A small spray of Pyromorphite crystals that have been coated or partially replaced by the Lead mineral Plumbogummite. From a pocket collected in November of 2014.
B-209 Barite $45 Congreso-León Mine, San Pedro Corralitos, Municipio de Casas Grandes, Chihuahua, Mexico 4.6 x 3.1 x 2.1 cm This aesthetic specimen of Barite consists of very thin group of pointed tabular blades to 3.3 centimeters perched on gossan matrix. There is also a secondary growth of smaller Barite crystals on one side of the specimen. These specimens were collected by benny Fenn around 1970-71.
V-024 Vanadinite $50 ACF Mine, Mibladen mining District, Midelt Province, Drâa-Tafilalet Region, Morocco 3.3 x 2.6 x 1.4 cm A rather large and hoppered crystal of Morocco's signature mineral, Vanadinite. This richly-colored specimen is complete all around and makes for an eye-catching display piece.
Q-451 Chalcedony pseudomorph after Anhydrite $120 Agua Fria River, New River Station Area, Yavapai County, AZ 4.5 x 4.3 x 2.6 cm These dramatic Chalcedony pseudomorphs after Anhydrite were collected over a period of 10 years by my friend, Al Rose. This material has the distinction of being mentioned not once but twice in The Mineralogical Record's what's new in minerals. Not many of these were found and are much sought after by collectors of Arizona minerals as well as by pseudomorph collectors.
C-258 Corundum variety Sapphire $50 Zazafotsy Quarry, Ihosy District, Ihorombe Region, Fianarantsoa Province, Madagascar 5 x 4.6 x 4.4 cm Here we have a chunky polychromatic Sapphire. This specimen features a stepped termination and has a dusting of Biotite crystals. The crystal shown here shows varying shades of red-purple depending on which lighting source you use to look at it. This Sapphire is rather large for the location.
C-264 Corundum variety Ruby $50 Ganesh, Hunza Valley, Gilgit District, Gilgit-Baltistan, Pakistan 3.2 x 3.2 x 1.8 cm Here we have a 2.5 centimeter crystal of ruby on a matrix of Calcite. the crystal has a good luster and does allow some light to pass through. Depending on the lighting that it is viewed under the specimen will either appear red or a purple-red colored. Ganesh is one of the oldest and more renowned Ruby & Sapphire localities in the world.
O-026 Hyalite Opal with Carbonate-rich Fluorapatite $40 Valec, Doupov, Karlovy Vary, Czech Republic 3.2 x 2.6 x 2 cm A beautiful, water-clear Hyalite Opal perched on matrix. This Opal is so glossy and transparent, it is very difficult to photograph. The formation of the Opal resembles bubbling water. This specimen is also covered with numerous white crystals of the rare, carbonate-rich variety of the mineral Fluorapatite.
O-027 Hyalite Opal with Carbonate-rich Fluorapatite $35 Valec, Doupov, Karlovy Vary, Czech Republic 3.6 x 3.2 x 2.1 cm A beautiful, water-clear Hyalite Opal perched on matrix. This Opal is so glossy and transparent, it is very difficult to photograph. The formation of the Opal resembles bubbling water. This specimen is also covered with numerous white crystals of the rare, carbonate-rich variety of the mineral Fluorapatite.
A-110 Anglesite with Paratacamite & Boleite $70 Amelia Mine, Boleo District, Santa Rosalía, Municipio de Mulegé, Baja California Sur, Mexico 2.7 x 1.5 x 1 cm Anglesite crystals are not that uncommon, but from the Amelia Mine they are almost unheard of. When they are found they typically measured in millimeters. This example, at 2.7 cm, is huge by Boleo District standards. And if that isn't enough for you, this double-terminated crystal also has inclusions of Boleite as well as clusters of Paratacamite on its surface, some of which are are either covering Boleite crystals or are pseudomorphs after Boleite.
P-075 Pyrite $35 Brushy Creek Mine, Greeley, Reynolds County, Missouri 4.5 x 1.3 x 1 cm. A neat and unusual little specimen from the famous Brushy Creek Mine in Missouri. This curvy column of shiny Pyrite crystals looks even better in person.
Z-001 Zircon SOLD Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Burma 4 x 2 x 2.2 cm. An extremely lustrous stack of twinned Zircon crystals is one of the better examples that I have seen from this famous location. Many examples of Zircon from this location are water-worn or aesthetically challenged. This specimen has sharp, well-defined crystallization. In addition to its attractive appearance under natural light, this mineral specimen fluoresces an intensely bright yellow when illuminated by SWUV light.
C-238 Chalcopyrite $50 Huaron Mines, Huaron Mining District, Pasco Province, Pasco Department, Peru 4.5 x 3.9 x 2.9 cm. Here we have a large, for its species, twinned crystal of Chalcopyrite perched on a matrix of Sphalerite. As an accent to this specimen there are several Quartz crystals. Not your usual Peruvian sulphide specimen.
H-070 Hematite pseudomorph after Marcasite $65 White Desert, Farafra Oasis, New Valley Governorate, Egypt 5.1 x 4.5 x 4 cm. These dramatic pseudomorphs were originally formed as Marcasite crystals on the ocean bottom. These unusual specimens were later pseudomorphed to Hematite making for a very three-dimensional and attractive mineral specimen. These radial bursts of crystals were found in the remote western desert of southwest Egypt and dug up by French dealer Alain Carion. This find was made a number of years ago and I have not heard of any new material being found.
P-077 Pyromorphite $100 Daoping Mine, Guilin Prefecture, Guangxi Zhuang Autonomous Region, China 2.4 x 2.4 x 1.5 cm. The Daoping mine is China's premier locality for world-class Pyromorphite crystals. The amazing thing, though, is that amongst the multitude of Pyromorphite to be found from this all-but-defunct location there were a small number of extremely large (for the species) single crystals. These chunky single crystal specimens made their debut at Tucson in 2008 and were quickly bought by savvy collectors.
S-155 Stibnite with Quartz $30 Murray Mine, Independence Mountains District, Elko County, NV 4.7 x 1.4 x 1 cm A small cluster of the antimony sulfide mineral, Stibnite. This specimen has tiny crystals of Quartz on one side. The Murray Mine is noted for its Stibnite crystals.
Q-171 Hubeite on Quartz with Apophyllite and Inesite $50 Fengjiashan
Mine, Hubei Province, China 3.5 x 3 x 2 cm. The outstanding feature of this aesthetic mineral specimen is the rare Silicate mineral Hubeite. Hubeite is only found at one location in the world, the Fengjiashan Mine in western China. This specimen is comprised of many fan-like clusters of Hubeite measuring up to 7 millimeters in size. Also present on this spectacular specimen are dozens of water clear crystals of Apophyllite and a 1 cm. crystal of the mineral Inesite. Most Inesite crystals found at this mine are only a few millimeters long, making the one present on this specimen quite large. The largest Inesite crystals found at this location only measured 1.5 cm. This outstanding specimen is a good example of the diversity and quality of minerals that can be found in China.
AG-009 Realgar $100 Level 280, Number 5 Mine, Baia Sprie, Maramures County, Romania 4.9 x 3.2 x 2.8 cm. This outstanding specimen of Realgar is from the find made in late 2005. This stunning find produced a limited amount of specimens and are considered to be among the best ever found at this classic locality, which has been regarded as the premier location for Realgar specimens. This Mine is now closed and the lower levels have filled with water and the pumps have been turned off permanently.
AG-010 Realgar $100 Level 280, Number 5 Mine, Baia Sprie, Maramures County, Romania 5 x 3.4 x 2.1 cm. This outstanding specimen of Realgar is from the find made in late 2005. This stunning find produced a limited amount of specimens and are considered to be among the best ever found at this classic locality, which has been regarded as the premier location for Realgar specimens. This Mine is now closed and the lower levels have filled with water and the pumps have been turned off permanently.
C-226 Calcite with sand inclusions $30 Sahara Desert, North Africa 5.3 x 3.6 x 2.5 cm. Here we have another one of nature's curiosities, a Calcite specimen that is heavily included by sand. Originally labeled as coming from the Sahara Desert, Saudi Arabia. The Sahara Desert does not extend into Saudi Arabia, therefore the most accurate location is North Africa.
AH-017
Cerussite, Biotite and Galena $30 Demix Quarry, Mont Saint-Hilaire, Québec, Canada 2 x 1.7 x 1.7 cm. This specimen represents a uncommon triumvirate of minerals in an association that I had not encountered before. This unusual mineral specimen features many black Biotite crystals and several Galena crystals encased in a matrix of coarsely crystallized Cerussite. This specimen was collected in 1980 before the Demix Quarry was incorporated into the Poudrette Quarry.
S-117 Siderite with Calcite $35 Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia 4.2 x 4.2 x 2.4 cm. An unusual, partially hollow ball of tan Siderite with scattered, lustrous, translucent Calcite blades from the classic Nikolaevskiy Mine, Dal'negorsk, Russia. This is classic material from this mine and not often seen these days.
P-073 Pyromorphite $40 Les Farges Mine, Ussel, Corrèze, Nouvelle-Aquitaine, France 2.5 x 1.6 x 1.4 cm. Les Farges is one of the premier localities in the world for Pyromorphite. This specimen is a good example of why this location has a reputation for producing world-class Pyromorphite specimens. A highly lustrous stack of strongly hoppered, fat, prisms make for a sculptural and aesthetic specimen. You don't see many of these around these days and the mine has been closed since 1981. A small but fierce specimen of Pyromorphite from a classic French locality.
G-069 Gypsum with Sand inclusions $25 Ahahrani, Saudi Arabia 4.2 x 4.2 x 2 cm. Here is a mineral specimen that you don't see for sale every day, or at least I haven't. This interesting mineral specimen consists of three interpenetrating Gypsum crystals that are heavily included by sand. The label that came with this specimen says that the sand that is incorporated in the Gypsum is oil-bearing. When was the last time you saw a mineral specimen from Saudi Arabia for sale?
P-048 Pyromorphite $35 Society Girl Mine, Moyie, British Columbia, Canada 2 x 1.1 x 1.3 cm. This Pyromorphite is a rare locality piece from our neighbors to the north. Only a few Canadian locations have ever produced any Pyromorphite crystals of note, the Society Girl Mine being the most famous. This well formed compound crystal is an excellent example from a country not known for its Pyromorphite specimens.
E-025 Epidote $40 Green Monster Mountain, Prince of Wales Island, Alaska 3 x 2.5 x 2.5 cm. This Epidote crystal comes from a mineral location that Peter Bancroft dubbed as one of the world's most inaccessible areas and a wild and forbidding spot to collect. Fine Epidote specimens from this remote location are much prized by collectors and in my opinion they are among the finest examples of this mineral species.
H-082 Halite $30 Bergmannssegen-Hugo Mine, Lehrte, Hanover, Lower Saxony, Germany 5 x 2.6 x 2.9 cm From a classic German locality comes this electric-blue Halite specimen. The CalTech website states that Blue Halite is the result of exposure to natural radiation. Initially, if Halite (common salt) is exposed to gamma radiation, it turns amber because of F-centers. They are mostly electrons trapped at sites of missing Cl- ions. In time the electrons migrate to Na+ ions and reduce it to Na metal. Atoms of Na metal, in turn, migrate to form colloidal sized aggregates of sodium metal. They are the cause of the blue color.
F-168 Feldspar variety Hyalophane $40 Zagradski Potok Mine, Zagradski Creek, Busovaca, Central Bosnia Canton, Bosnia and Herzegovina 3 x 2.3 x 1.6 cm. A crystal of one of the rarer varieties of Feldspar, Hyalophane, from the classic locality of Zagradski Potok Mine which in my opinion is the only one for good specimens of this species. Hyalophane is the Barium analog of Orthoclase. This clear-to-opaque crystal exhibits parallel growth and has a good luster. This mineral location was lost for years, until in 1978, a group of collectors rediscovered it. Very few specimens of this species make it to the United States as they are highly prized by European collectors.
P-020 Painite $200 Wet-loo, Mogok, Pyin-Oo-Lwin District, Mandalay, Burma 15 x 7 x 3 mm. This cool thumbnail specimen represents one of the rarest gem minerals known. Until about a year ago only several examples of this mineral were known to exist. While more have been found recently, the quantity has not been that significant. Examples of this mineral are selling for insane prices (often in the four-figure range) with cut stones going for thousands of dollars per carat. Since this crystal is not gemmy I can afford to sell it for a very reasonable price. Another neat fact is that this crystal was one of the 6 mineral specimens that were featured in mindat.org's 2006 Tucson Inn Suites show report.
S-125 Gypsum variety Selenite $40 Lake Gilles, Corunna Station, Australia 3.6 x 3.9 x 4.5 cm. When one thinks of Selenite from Australia, on thinks of the needle-like sprays that are quite abundant. What we have here is a much more uncommon crystal from Australia. This Selenite is complete all around and has a textbook-like form with a fishtail termination on its bottom. This Selenite is much clearer than it appears in the photo.
H-081 Halite $25 Saunders Mine, Carlsbad Potash District, Eddy County, NM 3.9 x 3.4 x 1.6 cm A specimen of transparent Halite with color varying from intense blue to nearly colorless. the specimen is crowned by crystals measuring up to 3.5 mm in size. The color is due to atomic lattice defects, not due to inclusions or impurities.
S-059 Silver with Bornite $50 La Noria Mine, San Pantaleón de la Noria, Munincipio de Sombrerete, Zacatecas, Mexico 4 x 3 x 2 cm. A sheet of Silver flanked by two chunky Silver crystals with a coating of iridescent Bornite. A good example of this classic mineral association from a long defunct locality. A specimen that would make an excellent addition to anyone's mineral collection.
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© 2003 - 2019 Cal Neva Mineral Company Unauthorized copying, while sometimes necessary, is never as good as the real thing |
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