Cal Neva Mineral Company, Mineral Specimens For Sale
   
 

New Mineral Specimens 1

 
 



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C-233  Copper  $65

Zarkashan Mountain, Ghanzi Province, Afghanistan

10 x 7 x 3 cm.

When one thinks of minerals from Afghanistan one thinks of Kunzite, Tourmaline, Lazurite and the other "sexy" minerals.  What many people don't realize is that Afghanistan's mineral wealth is much broader and deeper than that.  The mineral wealth of Afghanistan has just begun to be exploited.  I submit this specimen that is richly included with coarsely crystallized Copper as proof.  I hope that the future will see many more examples of the "other" minerals of Afghanistan.



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G-114  Almandine Garnet  $165

Granatenkogel, Obergurgl, Ötz Valley, North Tyrol, Tyrol, Austria

12.6 x 8 x 5.4 cm.

Classic Austrian material. Well defined Almandine crystals to 3 cm. on a schist matrix.  This specimen was meticulously prepared by slowly removing the schist from the faces of the Almandine crystals.  Many of these specimens are polished or oiled to give them a better appearance as the last little bit of material is very difficult to remove.  It is not easy to find an example as good as this one that hasn't been oiled or polished.  Several of the Garnet crystals on this specimen have a very small portion absent on the rear, but this is not visible nor does it take anything away from the overall aesthetics of this classic specimen.



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Q401  Quartz with Smectite  SOLD

Wana, South Waziristan, FATA, Pakistan

7 x 1.6 x .7 cm.

Faden Quartz crystals from Pakistan have been around for a while but are almost never seen associated with other minerals.  I acquired a couple dozen of these colorful specimens at the 2008 Springfield Mineral show.  I was a little skeptical about the blue mineral present on the specimens, having been told that it was Smectite.  A quick visit to Alfredo Petrov's booth resulted in him stating that it could be Smectite, although neither one of us had seen such vividly colored examples of this mineral.  After testing the specimen to ensure that the specimen had not been dyed, I then sent a sample to John Attard for XRD analysis.  He confirmed that it was indeed Smectite. This specimen represents one of the best Faden Quartz mineral associations from Pakistan.  A very colorful and unusual Quartz specimen.



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P-073  Pyromorphite  $35

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.



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P-072  Pyrite  $70

Rio Marina, Elba Island, Livorno Province, Italy

7.2 x 6.7 x 3.9 cm.

The mineral wealth of Elba has been exploited since Etruscan times.  It is a small wonder that there is anything left these days.  No significant finds of Pyrite have been made here since the 1970's.  The iron mines of Elba, most of which are long closed, were choice collecting localities for mineral enthusiasts, as early as the beginning of the 19th century.  The pyrite specimens, such as this one, were especially prized.  This brassy-colored specimen features many inter grown pyritohedrons up to 2.5 centimeters.  This specimen is contacted on the lower sides but presents well and is not a detraction from the overall looks of the specimen.  Ex. Howard Belsky collection.



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T-283  Uvite on Magnesite  $40

Pomba Pit, Serra das Éguas, Brumado, Bahia, Brazil

6.3 x 3.5 x 3 cm.

I've handled a lot of Uvite from Brumado over the years but don't recall seeing any material of this color before.  This specimen features rhombs of nearly clear Magnesite festooned with sub-millimeter, orange-colored crystals of Uvite.  The few larger Uvite crystals are more red-orange in color.  While there is some minor bruising of the Magnesite, I think that is acceptable in this case as the main feature of this specimen is the unusually colored Uvite crystals.



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T-284  Uvite on Magnesite  $35

Pomba Pit, Serra das Éguas, Brumado, Bahia, Brazil

5 x 4.5 x 3 cm.

I've handled a lot of Uvite from Brumado over the years but don't recall seeing any material of this color before.  This specimen features rhombs of nearly clear Magnesite festooned with sub-millimeter, orange-colored crystals of Uvite.  The few larger Uvite crystals are more red-orange in color.  While there is some minor bruising of the Magnesite, I think that is acceptable in this case as the main feature of this specimen is the unusually colored Uvite crystals.



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B-203  Beryl variety Heliodor  $110

Padre Paraíso, Minas Gerais, Brazil

5 x 1.5 x 1.2 cm.

An intense, fat single crystal with great color, better clarity than can be seen in these photographs and a nearly 1 centimeter greenish Aquamarine-colored termination.  This crystal is complete all-around except only for one area of contact on the back face.  This crystal shows unusual etching patterns around its surface which makes for a texture that feels just a little bit rough to the touch, although it certainly appears smooth from a distance. The visual effect is to make the surface more sparkly from the extra minute reflection points.  Classic Brazilian Beryl from a modern-day classic location.



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B-204  Beryl variety Heliodor  SOLD

Padre Paraíso, Minas Gerais, Brazil

7.6 x 1.3 x 1 cm.

A gemmy, single crystal with great color and better clarity than can be seen in these photographs.  This crystal has a rich yellow color and an Aquamarine-colored, modified termination.  This crystal shows unusual etching patterns around its surface which makes for a texture that feels just a little bit rough to the touch, although it certainly appears smoother from a distance. The visual effect is to make the surface more sparkly from the extra minute reflection points.  Classic Brazilian Beryl from a modern-day classic location.



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B-201  Beryl variety Heliodor  $185

Padre Paraíso, Minas Gerais, Brazil

7.2 x 1.5 x 1.4 cm.

A gemmy and stout, single crystal of bi-colored Beryl with great color and better clarity than can be seen in these photographs.  This crystal has a rich yellow color and an Aquamarine-colored termination.  This crystal shows unusual etching patterns around its surface which makes for a texture that feels just a little bit rough to the touch, although it certainly appears smoother from a distance. The visual effect is to make the surface more sparkly from the extra minute reflection points.  Classic Brazilian Beryl from a modern-day classic location.



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L-040  Lepidolite cast after Tourmaline  $75

Barra do Salinas, Coronel Murta, Minas Gerais, Brazil

9.6 x 4.4 x 3.8 cm.

Barra do Salinas has a long-lived reputation for producing stunning specimens of Elbaite and of Kyanite. I believe if there were more of these dramatic Lepidolite crystals epimorphing Elbaite crystals available they too would be considered classics by those who appreciate a good pseudomorph, epimorph or other mineral oddity.  This specimen features numerous well-formed, Lilac-colored, Lepidolite crystals epimorphing Elbaite which have dissolved to leave tubular hollow casts.



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T-293  Tourmaline variety Elbaite  $250

Mawi Pegmatite, Nilaw-Kolum Pegmatite Field, Nuristan Province, Afghanistan

3.7 x 1.7 x 1.7 cm.

A transparent and gemmy bi-colored Elbaite crystal with a frosted, modified termination.  I haven't seen an example of these Elbaite crystals in quite some time.  They are from an older find, from the early 1990's, when they were available for a short time.  This crystal is a lot clearer than is apparent in these photographs.  In a time when the price of Tourmaline of any good quality is just downright ridiculous, I think this specimen is priced rather fairly.



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T-282  Tourmaline variety Elbaite  SOLD

Leepa, Neelum Valley, Muzaffarabad District, Azad Kashmir, Pakistan

5 x 1.8 x 1.4 cm.

A very clear pastel-pink and green Elbaite from a location that those Tourmaline collectors "in the know" lust after.  When one thinks of Tourmaline from Pakistan, the elegant sprays with Cleavelandite from Stak Nala are the first thing that comes to mind.   Much, much more rare are the stunning Elbaite crystals from Azad Kashmir.  This crystal looks a little frosty on the back side due to a micro-thin coating of pocket clay which could be removed by bead-blasting if desired.  I chose not to do this in order to keep the price of this Tourmaline reasonable.  Either way it is a great looking specimen.  This is an older specimen from the early 1990's and examples of this material are very rarely seen for sale these days.



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T-276  Tourmaline variety Dravite  $50

Mwajanga, Simanjiro District, Manyara Region, Tanzania

4.1 x 1.1 x .7 cm.

I've only seen maybe 50-60 examples of these crystals, but they are quite distinct and interesting.  This area has recently produced some interesting Dravite specimens including yellow, olive-green and brown crystals.  More recent are these fascinating gemmy and rarely seen "root beer" colored crystals, which grade into a very thin sliver of a yellow hue (which is one of the rarest colors for any tourmaline species) and to top it off is the stark contrast in the immediate form of a silvery-blue opaque cat's-eye termination.



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T-273  Tourmaline variety Dravite  $35

Mwajanga, Simanjiro District, Manyara Region, Tanzania

5 x .8 x .6 cm.

I've only seen maybe 50-60 examples of these crystals, but they are quite distinct and interesting.  This area has recently produced some interesting Dravite specimens including yellow, olive-green and brown crystals.  More recent are these fascinating gemmy and rarely seen "root beer" colored crystals, which grade into a very thin sliver of a yellow hue (which is one of the rarest colors for any tourmaline species) and to top it off is the stark contrast in the immediate form of a silvery-blue opaque cat's-eye termination.



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T-275 Tourmaline variety Dravite  $75

Mwajanga, Simanjiro District, Manyara Region, Tanzania

5 x 1.5 x 1.3 cm.

Another example of the diversity of the Dravite crystals from Tanzania.  The Simanjiro District has recently produced some very interesting Dravite specimens including yellow, olive-green and brown crystals.  More recent are these fascinating gemmy (when backlit) "root beer" colored crystals.



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G-112  Spessartine with Smoky Quartz & Muscovite  $65

Wushan Spessartine Mine, Tongbei, Fujian Province, China

7.5 x 4.9 x 7 cm.

The Spessartine Garnet specimens from this locality are definitely in the upper echelon of Garnet specimens. For the past 20 or so years, Chinese Garnets have been quite abundant.  But the really good specimens have been too few and hard to come by.  This specimen consists of a mound of Feldspar studded with lustrous crystals of Spessartine with several smaller smaller Smoky Quartz crystals protruding from its side.  The Garnets on this specimen have a luster and color that has to be seen in person to be fully appreciated.  Another plus is the striking color of the Garnets.  These specimens are modern-day classics.



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T-299  Thomsonite  $45

Aurangabad District, Maharashtra, India

4.3 x 4.2 x 4.7 cm.

This attractive specimen features 3 radiating, acicular crystal aggregates of the relatively rare Zeolite mineral Thomsonite dramatically perched on a matrix of vuggy, Celadonite-coated matrix of Basalt.  It is very unusual find Thomsonite crystals in this form.  These specimens made quite a splash when they were first offered for sale in Denver in (I can't remember the exact year) 2004 or 2005. They don't look like any example of Thomsonite that I've seen from any other locality.  The front 2 spheres of Thomsonite are complete save for a small area of contact.  Only The smallest sphere at the rear of the specimen is incomplete.



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S-130  Stilbite  $40

Calapooya River, Dollar, Linn County, Oregon

7.7 x 6 x 4.1 cm.

Here's a real "old-timer" for you.  Most people don't realize that the Basalt flows of northern Oregon while mostly barren have produced some extremely desirable Zeolite specimens.  The Stilbite specimen presented here is a good example of that.  Around the early 1960 's along a logging road road on the north side of the Calapooya River Valley near Washout Creek several significant pockets of Zeolite minerals were found.  This specimen has the characteristics of those finds.  Both labels one old and one more recent have the location as "Lallipoya River" which I believe is a miscommunication, somewhere along the line, of the correct locality for this specimen.

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