The Arkenstone Gallery of Fine Minerals

The Arkenstone Gallery of Fine Minerals One of the first mineral sales websites launched in 1996, iRocks.com has been at the forefront of fine mineral sales and we have had the honor of dispersing many fine collections!

The Arkenstone (Est. 1996) is a world-leader in crystals, fine minerals, and natural art. We love sharing our passion for these unique pieces of natural art, and we have decades of experience consulting with private collectors and museums on curating collections and designing displays. Our 7000+ square foot showroom is open by appointment. Contact us to visit!

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WulfeniteSmall Cabinet, 7.0 x 5.0 x 3.0 cmOjuela Mine, Mapimi, Durango, MexicoAvailable : https://www.irocks.com/mineral...
06/28/2019

Wulfenite
Small Cabinet, 7.0 x 5.0 x 3.0 cm
Ojuela Mine, Mapimi, Durango, Mexico

Available : https://www.irocks.com/minerals/specimen/8739

Emplaced on ocherous limonite is a striking pincushion cluster of lustrous and translucent, elongated, bi-pyramidal, amber, wulfenite crystals, to 2.0 cm in length. Superb example of this rare crystal habit for wulfenite, and one of the most dramatic examples we have handled out of perhaps 1000 specimens from this locality in the last 3 years since it has really started to produce again. This is a habit quite unlike past finds, though, and rare by worldwide standards as well. with minor rich green, spherical mimetite in association, this is from the recent finds, an aberration really, and not from the 2007-2008 finds (most of smaller crystals, without such size to them). An important Ojuela specimen

Calcite in geodeCabinet, 10.5 x 7.3 x 6.6 cmPau, Pyrenees-Atlantiques, Nouvelle-Aquitaine, FranceEx. Paul ZerfassAvailab...
06/27/2019

Calcite in geode
Cabinet, 10.5 x 7.3 x 6.6 cm
Pau, Pyrenees-Atlantiques, Nouvelle-Aquitaine, France
Ex. Paul Zerfass

Available : https://www.irocks.com/minerals/specimen/46969

A French calcite geode smaller than the other one in the update containing similar very lustrous and gemmy calcite scalenohedrons. Stunning, transparent, water-clear calcite crystals with incredible luster dramatically line the inside of this small geode from a limited find of shocking quality in France a few years ago. I have seen just a few on the market, from only one source, recently. This is some of the finest gem calcite I have seen, especially from France, and this expressive geode displays prominently! Spectacular piece from the important French suite of French field collector, Paul Zerfass (see Le Regne Minerale article on the collection, available by request).

06/27/2019
Imperial Topaz from Ouro Preto, Brazil

Imperial Topaz - Ouro Preto, Brazil
https://www.irocks.com/minerals/specimen/47412

Topaz from this small district in Brazil has a unique shape and color. Some of these Imperial Topaz crystals have a "style" to them that, for color and pizzazz, puts them above others. This is one such, with the richest color and sparkle. Truly glassy and gemmy, this 'imperial topaz" crystal exhibits a beautiful orange color. But when a light source at the base of the crystal illuminates it, the termination is electrified by an intense, neon reddish orange glow. The mass is 48 grams. A superb old-timer with the best color and no repairs, this is a significant specimen for any collection. Better in person, so please inquire. Comes with a customer lucite base. Price on Request.

06/27/2019
Iridescent Goethite with Malachite

Goethite and Malachite - Savannakhet Province, Laos

In recent years, Savannakhet Province has produced a fantastic range of species - bright blue azurites, saturated malachites, and metallic iridescent goethite in bubbling, round formations. This piece has beautiful green glittering botryoidal malachite crystals

Fluorite on DolomiteCabinet, 11.6 x 6.8 x 6.4 cmShangbao, Hunan Province, ChinaAvailable : https://www.irocks.com/minera...
06/27/2019

Fluorite on Dolomite
Cabinet, 11.6 x 6.8 x 6.4 cm
Shangbao, Hunan Province, China

Available : https://www.irocks.com/minerals/specimen/7784

This is from a new pocket found at the end of 2008, and quietly trickled into Tucson in 2009. It is a select, cherry picked piece featuring cuboctahedral purple crystals phantomed with deep purple cores. Only a handful of specimens in this pocket were purple! The fluorite is perched on beautiful, lustrous, dolomite crystals. The dolomites have a porcelain-like quality to them and the stark contrast in texture and geometry is appealing. The larger fluorite, 3.4 cm across, is pristine and the smaller one is nearly so (with only a small contact-induced spot on the far left edge of one corner). The dolomite on the display face has excellent luster, and is complete except for only a few peripheral crystals. I know that quality specimens from this pocket were going for prices much higher than this, under the table and privately at Tucson. It will, in retrospect, turn out to be one of the more interesting fluorite combinations from China and is really a unique combination so far as I can see.

Fluorite on BaryteCabinet, 13.0 x 12.3 x 5.0 cmSub-Rosiclare Level, Poe Pod, Annabel Lee Mine, Harris Creek District, Il...
06/27/2019

Fluorite on Baryte
Cabinet, 13.0 x 12.3 x 5.0 cm
Sub-Rosiclare Level, Poe Pod, Annabel Lee Mine, Harris Creek District, Illinois, USA
Ex. Ross Lillie

Available : https://www.irocks.com/minerals/specimen/41686

Another large and attractive combination piece from this special pocket of 1994, of deep purple Fluorite on a plate of crystalline Baryte. The isolation and stark contrasts make this pocket special and notable. Not many were found. The Fluorite has good luster, and it is most unusual to find such isolated crystals like this on matrix. The largest Fluorite is 3 cm, and although one corner is dinged, no pieces from this pocket came out unscathed, due to damage in blasting into the pocket. This is noted on Lillie's own label, followed by "minor damage accepted as there were no perfect ones... best of the lot." The overall aesthetics, size, and rarity make this a fine specimen.

CupriteCabinet, 10.5 x 7.8 x 4.0 cmMilpillas Mine, Cuitaca, Sonora, MexicoAvailable : https://www.irocks.com/minerals/sp...
06/26/2019

Cuprite
Cabinet, 10.5 x 7.8 x 4.0 cm
Milpillas Mine, Cuitaca, Sonora, Mexico

Available : https://www.irocks.com/minerals/specimen/43315

A brilliantly lustrous cabinet sized specimen from the January 2016 pocket at Milpillas, showing intense cherry-red color and metallic luster throughout. Very impressive in a case, particularly if near the LED lights. The final photo shows less strong lighting, than the others. These are particularly red in sunlight.

06/26/2019
Smoky Quartz on Glistening Hematite Crystals

Hematite on Beta Quartz on Hematite - Florence Mine, Egremont, West Cumberland Iron Field, Cumbria, England, UK
https://www.irocks.com/minerals/specimen/38606

This is a classic hematite and quartz combo specimen from England, from the classic old English Iron District. It is most likely from the Florence or Beckermet Mines, or the Cleator Moor area. It is a beautiful combination piece, displayable at any orientation, and showing off sharp clear quartzes upon brilliant and very sparkly hematite crystals to 2mm. This is a fine large example of the so-called "beta quartz" from England. Note that I am told these are not true high-temperature beta quartz on a technical level, but they sure LOOK like it at first glance, certainly, and are often termed as such. Large, dramatic, classic combo! Hard to find in such quality today. Ex. Robert Whitmore

Fluorite on SphaleriteCabinet, 10.4 x 8.1 x 5.5 cmDenton, Rosiclare Level, Harris Creek, Hardin Co., Illinois, USAEx. Ro...
06/26/2019

Fluorite on Sphalerite
Cabinet, 10.4 x 8.1 x 5.5 cm
Denton, Rosiclare Level, Harris Creek, Hardin Co., Illinois, USA
Ex. Ross Lillie

Available : https://www.irocks.com/minerals/specimen/42466

A gorgeous, classic combination piece: Emplaced attractively on a matrix of "ruby jack" sphalerite, with crystals to 6 mm across, is a cluster of lustrous and translucent, rich purple colored fluorite crystals, to 2.5 cm across. Mined at the end of August, 1993 from the north face of the Timber drift. Vivid color and sharp form make this piece stand out, against sparkling sphalerite matrix. RCL 1154, with previous dealer label of $5000)

06/26/2019
Rhodochrosite - Wutong mine, Guangxi, China

Rhodochrosite - Wutong mine, Guangxi, China
https://www.irocks.com/minerals/specimen/47083

Closely resembling a flying wing or a "lobster-tail" as the Chinese miners called them at the time, this fine rhodochrosite specimen is composed of stacked and parallel rhombohedrons, to 2.3 cm across. There is good luster and translucence and the color is a rich rose red. It literally glows when backlit! The specimen is also emplaced on a bit of fluorite, attached to the back, and is otherwise a floater - complete all around with no point of attachment. Showy and dramatic! This dates from 2010 or so, and no more this quality have been found since. it is, for the size range, and without repair and restoration, hard to surpass for a Chinese rhodochrosite. These are modern classics, and hard to obtain today.

Shop more rhodochrosites at https://bit.ly/2RxOyMm

06/26/2019
Large Fluorapatite from Panasqueira, Portugal

Fluorapatite - Panasqueira, Portugal

This is a LARGE deep green fluorapatite from the well-known mines of Panasqueira, which produces some of the world's best fluorapatites. The mine opened over a century ago, and is anticipated to still be active for another 30 years!

DM for pricing, or e-mail us at [email protected]!

Fluorite With BaryteCabinet, 14.8 x 12.0 x 4.7 cmRosiclare Level, Minerva Mine #1, Cave-in-Rock District, Illinois, USAA...
06/26/2019

Fluorite With Baryte
Cabinet, 14.8 x 12.0 x 4.7 cm
Rosiclare Level, Minerva Mine #1, Cave-in-Rock District, Illinois, USA

Available : https://www.irocks.com/minerals/specimen/42059

This large plate of intergrown, lustrous and translucent, bi-colored fluorite crystals to 5.4 cm across also has small tabular rosettes of white Baryte. The core of the fluorite crystals is a light yellowish amber color while the crystals edges are a lovely lavender color. The two colors blend and shade into one another, changing subtly with the lighting. It is a fine large plate, with only a few minor dings. It is actually technically complete on the broad, flattish backside as well, contacted on back where it grew against a host matrix. This thinness makes the piece much more easily backlit and colorful in a case than most. Finally, it LOOKS for all the world like an Elmwood fluorite in shape and color patterning with the more yellow corners. If it did not have the Baryte association (minor though it is), you'd swear this was from Tennessee.

06/26/2019
Blue Halite Crystal from New Mexico

Halite - Kerr McGee Mine, New Mexico

Lustrous, gemmy, bright blue halite has made the Kerr McGee mine famous. Note added From the CalTech website courtesy Dr. George Rossman: 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.

DM for pricing, or e-mail [email protected]

LinariteThumbnail, 2.6 x 1.5 x 0.9 cmMammoth-St Anthony Mine, Tiger, Pinal Co., Arizona, USAEx. Jim WhiteAvailable : htt...
06/25/2019

Linarite
Thumbnail, 2.6 x 1.5 x 0.9 cm
Mammoth-St Anthony Mine, Tiger, Pinal Co., Arizona, USA
Ex. Jim White

Available : https://www.irocks.com/minerals/specimen/41761

This is the largest Arizona linarite crystal I have seen in a long time, and one of the largest at all from this locality. It has stunning color with deep blue saturation. The crystal is contacted and/or slightly damaged atop, but displays impactfully and you just tilt it back a little to hide that small roughness. This specimen came from well known field collectors Dick Morris and Mark Hay, so I trust the provenance - otherwise I would not have thought such a robust crystal could be from the Mammoth Mine.

06/25/2019
Rare Roselite crystals from Bou Azzer, Morocco

Roselite - Bou Azzer, Morocco

The type locality for Roselite is in Schneeberg, Germany, and the species was named in the early 1800s after German mineralogist Gustav Rose, but many of the best examples of the species come from the more contemporary finds at Bou Azzer. This sparkling example features specimens reaching up to 7 mm, unusually large crystals for roselite!

DM for pricing, or e-mail [email protected].

06/25/2019
Scorodite on Calcite - El Cobre, Mexico

Scorodite on Calcite (1969 pocket) - El Cobre mine, Zacatecas, Mexico
https://www.irocks.com/minerals/specimen/47422

Scorodite from this ONE TIME pocket in Mexico, in 1969, is considered to be among the world's best of species (this pocket, and a few pieces from Tsumeb, and that is it!). This miniature sized specimen is richly covered with sparkling, lustrous and translucent blue scorodite crystals to 1.2 cm in length. As you would wish, they are perched on a color contrasting matrix of drusy, white quartz. These almost NEVER turn up on the market. Nobody who owns one really wants to part with it, and I have not had a good one for sale in nearly a decade, let alone with such quality. This is one of the rarest additions to any Mexican suite, or for that matter to a suite of the rare and desirable mineral species that are colorful and beautiful, but few people can ever own. Treasured since they were found, and seldom for sale, this is an important specimen, not just a pretty showpiece.

06/25/2019
Fluorite (Carthage Corner!) from Elmwood, Tennessee

Fluorite and Galena - Elmwood mine, Carthage, Tennessee

The Elmwood mine produces fantastic fluorites with stepped faces, like this piece, which also features the famous Carthage Corner - a lustrous, smooth, gemmy corner which stands out in stark contrast to the stepped growth surrounding it.

DM for pricing, or e-mail [email protected]!

StibiotantaliteThumbnail, 1.2 x 0.9 x 0.5 cmMawi Pegmatite, Nuristan, Laghman Province, AfghanistanAvailable : https://w...
06/25/2019

Stibiotantalite
Thumbnail, 1.2 x 0.9 x 0.5 cm
Mawi Pegmatite, Nuristan, Laghman Province, Afghanistan

Available : https://www.irocks.com/minerals/specimen/41414

Gem pegmatites sometimes produce unusual or rare species which we do not expect, and sometimes even more rarely produce stunning examples of species we might expect in a pegmatite, but novel and beautiful form we had not seen before. When these came out, we had no idea what they were. This lustrous and translucent, lemon yellow crystal of stibiotantalite is from a special pocket found about ten years ago, and brought out by dealer Herb Obodda. This is one from his old stock, long put away. These are, to my mind, among the most surprising species finds in Afghanistan.

06/25/2019
Kunzite - Nuristan, Afghanistan

Spodumene var. Kunzite - Nuristan, Laghman Prov., Afghanistan
https://www.irocks.com/minerals/specimen/41280

A dramatic kunzite crystal showing an unusually fine and sharp termination, that measures 10 x 4 x 2.5 cm. It has some small amount of attached pegmatite pocket matrix to one side as a welcome accent and difference from all the singles out there. The broad, deep, textbook termination really makes the piece at another level compared to most from this locale, which tend to have etched or irregular terminations. Note that the color on kunzites such as this changes depending on the intensity and direction of the lighting. These photos are what we would call "mid-level" lighting, not too strong or too bright. This is also easier to show the gemminess, in photos. If you angle a halogen into the long axis, it will glow with a more saturated pink color and it will look more internally bright and sparkly, but this makes it harder for the camera to accurately capture the faces, as well. It is a fine cabinet specimen worthy of any serious collector. Ex. Herb Obodda Collection.

06/25/2019
Mimetite from Thailand

Mimetite - Guatomo Mine, Tham Thalu, Bannang Sata District, Yala Province, Thailand

While Thailand has an abundance of beauty, very few mineral specimens are found in the country, but the Guatomo mine in the far south of the country produced lustrous, bright mimetites in the late 1990s, and not again since. These rarely come on the market, and those that do are very rarely matrix specimens.

DM for pricing, or e-mail [email protected]!

Rhodonite gem crystalThumbnail, 2.1 x 2.1 x 0.6 cmConselheiro Lafaiete, Minas Gerais, BrazilAvailable : https://www.iroc...
06/25/2019

Rhodonite gem crystal
Thumbnail, 2.1 x 2.1 x 0.6 cm
Conselheiro Lafaiete, Minas Gerais, Brazil

Available : https://www.irocks.com/minerals/specimen/42674

A beautiful crystal from circa-2010 finds at this very old manganese mining locality in Brazil, with glowing pinkish-red color and a superb front display face. The gemminess and luster is phenomenal here! The back appears to be a very clean and sharp, although there is very minor edgewear in spots, but this is nevertheless a very showy crystal among the top thumbnails of the species, in my opinion. The aesthetics are excellent, and it could almost be cut , rather than mounted as a specimen. Better in person, as well, this is among the finer crystals for the size - I should know, as I handled much of the finds of over $1million worth of this material when it came out. Few crystals in ANY size were so gemmy, and most theat were went straight to the gemcutters before I could buy them at the mine.

Diamond (Ballas Style)Thumbnail, 1.0 x 1.0 x 1.0 cmDiamantina, Jequitinhonha valley, Minas Gerais, BrazilEx. James (Jim)...
06/24/2019

Diamond (Ballas Style)
Thumbnail, 1.0 x 1.0 x 1.0 cm
Diamantina, Jequitinhonha valley, Minas Gerais, Brazil
Ex. James (Jim) Houran

Available : https://www.irocks.com/minerals/specimen/38974

This is a literally spherical diamond, 11.23 carats in size and just a hair over 1 cm in diameter. It would be considered relatively large for its style, called "ballas" in diamond classification. Although round, it is not rounded by erosive forces and occurred like this naturally. According to Wikipedia's article on diamonds, at http://en.wikipedia.org/wiki/Material_properties_of_diamond: "Some diamonds found in Brazil and the Democratic Republic of the Congo are polycrystalline and occur as opaque, darkly colored, spherical, radial masses of tiny crystals; these are known as ballas and are important to industry as they lack the cleavage planes of single-crystal diamond." This is a perfect example, and is very translucent and attractive as well. It has a pleasing slight beige tint to the color - most are more gray in tone. From an old collection, and then recently in the Jim Houran collection of gem thumbnail crystals for a few years. Joe Budd Photos

06/24/2019
Rare Annabergite from Lavrion, Greece

Annabergite with Cuprian Smithsonite
Km-3 Mine, Laurium District, Attica Prefecture, Greece
https://www.irocks.com/minerals/specimen/37359

This is a MAJOR annabergite specimen with huge crystal clusters to nearly 1 cm, associated with translucent green cuprian smithsonite. Annabergite occurs at its best from this locality, though great specimens are few and far between, despite hundreds of years of collecting. For overall richness, crystal size, and exceptional crystal definition, this is an important and attractive specimen. I have not had a better one, in several decades of dealing in colorful European classics, for what its worth.

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