MINERAL SPECIMENS FOR SALE ~ Cal  Neva Mineral Company
   
 

New Mineral Specimens

January 19th 2021 New Mineral Specimens Coming Soon

 
 



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Tourmaline, Chiá mine, São José da Safira, Minas Gerais, BrazilTourmaline, Chiá mine, São José da Safira, Minas Gerais, BrazilTourmaline, Chiá mine, São José da Safira, Minas Gerais, Brazil
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T-361  Tourmaline  SOLD
Ex Russ Rizzo

Chiá Mine, São José da Safira, Minas Gerais, Brazil

6.5 x 4.9 x 4.1 cm

A large crystal of Tourmaline with a fuzzy, hair-like termination. The body of this stout crystal is dark in hue with the termination being silvery-blue in color. One face of this specimen features several embedded Albite crystals and a patch of the mineral Cookeite. Cookeite is very uncommon from the pegmatites of Minas Gerais and is rare from the Chiá Mine. Examples of Tourmaline from this location are hard to come by.


Calcite, Rancho de Ballestero, Playas de Rosarito, Baja California, MexicoCalcite, Rancho de Ballestero, Playas de Rosarito, Baja California, MexicoCalcite, Rancho de Ballestero, Playas de Rosarito, Baja California, Mexico
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C-315  Calcite  SOLD

Rancho de Ballestero, Playas de Rosarito, Baja California, Mexico

4.4 x 3.2 x 4 cm

An example of amber-brown-colored, translucent Calcite from finds made in the 1960s-1970s in the Rosarito Beach area of Baja California. These specimens when recovered were often covered with a caliche-like mud that was very difficult to remove; the result being that most all of the examples of this material has been acid-etched. The mineral deposits of Baja are continuous with those of San Diego and many San Diego County collectors are more than happy to own specimens from Baja regardless of political borders. Examples of this material are considered to be a minor “holy grail” item for such collectors, much harder to find than examples of, for instance, blue cap Tourmaline specimens from Pala.


Emerald, Khenj District, Panjshir, AfghanistanEmerald, Khenj District, Panjshir, AfghanistanEmerald, Khenj District, Panjshir, Afghanistan
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B-254  Emerald on Quartz (fluorescent)  SOLD

Khenj District, Panjshir, Afghanistan

3.4 x 1.6 x 1.6 cm

A double-terminated crystal of Emerald on a matrix of Quartz. Emeralds from Panjshir are known for their rich, green hue and this example is no exception. specimens of Emerald from Panjshir are very hard to come by as everything that is found is sold for faceting or other lapidary treatment. Another feature of this specimen is that is has a very good deep-red fluorescence when illuminated by LWUV. Fluorescent Beryl is rare, even more so fluorescent Emeralds.


Gypsum, Grand Erg Oriental Desert, Douz, Kebili, TunisiaGypsum, Grand Erg Oriental Desert, Douz, Kebili, Tunisia
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Gypsum, Grand Erg Oriental Desert, Douz, Kebili, Tunisia
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G-165  Gypsum with Sand inclusions  SOLD

Grand Erg Oriental Desert, Douz, Kebili, Tunisia

11.4 x 10 x 10.6 cm

A very large and very three-dimensional group of Gypsum crystals from the southern deserts of Tunisia. Sand included crystals are poikiloblastic crystals included by a large amount of Quartz sand, sometimes exceeding 50%. The edge of one of the crystals shows very minor wear which does not visually detract from the overall aesthetics of the specimen.


Muscovite, Xanda Mine, Virgem da Lapa, Minas Gerais, BrazilMuscovite, Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil
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M-073  Muscovite  SOLD

Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil

5 x 4.1 x 1.4 cm

A floater crystal of Muscovite with a hollow center. A very unusual specimen.


Muscovite, Xanda Mine, Virgem da Lapa, Minas Gerais, BrazilMuscovite, Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil
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M-074  Muscovite  SOLD

Xanda Mine, Virgem da Lapa, Minas Gerais, Brazil

4.5 x 3.9 x 1 cm

A well formed hexagonal crystal of Muscovite with a hollow center. A very unusual specimen.


Orthoclase, Karlovy Vary District (Carlsbad), Karlovy Vary Region, Czech RepublicOrthoclase, Karlovy Vary District (Carlsbad), Karlovy Vary Region, Czech RepublicOrthoclase, Karlovy Vary District (Carlsbad), Karlovy Vary Region, Czech RepublicOrthoclase, Karlovy Vary District (Carlsbad), Karlovy Vary Region, Czech Republic
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F-307  Orthoclase (Carlsbad-twin)  SOLD

Karlovy Vary District (Carlsbad), Karlovy Vary Region, Czech Republic

4.1 x 3.4 x 1.7 cm

A floater, double-terminated Carlsbad-twinned Orthoclase crystal. This specimen is from the type locality for this type of twinning. This specimen has a textbook form and is one of the best examples of this material that I have seen. "Karlsbad"/"Carlsbad" is the old name for Karlovy Vary, which is the namesake for the twinning habit. The most well-known Orthoclase sites (coming from Carlsbad massive porhpyric granite) are on the fields between Loket and Hory that is located just 5 km from the city limits of Karlovy Vary (Carlsbad)


faden Quartz with Smectite, Wana, South Waziristan District, Khyber Pakhtunkhwa Province, Pakistanfaden Quartz with Smectite, Wana, South Waziristan District, Khyber Pakhtunkhwa Province, Pakistanfaden Quartz with Smectite, Wana, South Waziristan District, Khyber Pakhtunkhwa Province, Pakistan
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Q-571  faden Quartz with Smectite  SOLD

Wana, South Waziristan District, Khyber Pakhtunkhwa Province, Pakistan

7.3 x 2.1 x .5 cm

A mostly clear, lightning-bolt-shaped Faden Quartz crystal selectively coated with blue-colored Smectite. 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 specimens to ensure that they had not been dyed, I then sent a sample to John Attard for XRD analysis. He confirmed that it was indeed Smectite.


Titanite with Chlorite & Rutile on Albite variety Pericline, Tormiq Valley, Haramosh Mts., Roundu District, Gilgit-Baltistan, PakistanTitanite with Chlorite & Rutile on Albite variety Pericline, Tormiq Valley, Haramosh Mts., Roundu District, Gilgit-Baltistan, PakistanTitanite with Chlorite & Rutile on Albite variety Pericline, Tormiq Valley, Haramosh Mts., Roundu District, Gilgit-Baltistan, Pakistan
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T-359  Titanite with Chlorite & Rutile on Albite variety Pericline  SOLD
Ex Russ Rizzo

Tormiq Valley, Haramosh Mts., Roundu District, Gilgit-Baltistan, Pakistan

3.5 x 2.5 x 2.1 cm

A 3.5 cm double-terminated crystal of Pericline with a 2.5 cm, Chlorite coated, crystal of Titanite capped by a metallic-red group of Rutile crystals. Complete, all-around with no damage. An aesthetic example of what Pakistan has to offer when it comes to alpine-cleft minerals.


Topaz, Klein Spitzkopje Granite Stock, Spitzkopje Area, Karibib, Erongo Region, NamibiaTopaz, Klein Spitzkopje Granite Stock, Spitzkopje Area, Karibib, Erongo Region, Namibia
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Topaz, Klein Spitzkopje Granite Stock, Spitzkopje Area, Karibib, Erongo Region, NamibiaTopaz, Klein Spitzkopje Granite Stock, Spitzkopje Area, Karibib, Erongo Region, Namibia
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T-360  Topaz with Schorl  SOLD

Klein Spitzkopje Granite Stock, Spitzkopje Area, Karibib, Erongo Region, Namibia

5.3 x 3.7 x 2.8 cm

A crystal of Topaz with many small crystals of Schorl embedded in its surface. This Topaz has a brilliant lustre and a faint blue color. The crystal is complete all around with a small area of contact near the base where another crystal grew up against it. This crystal is mostly gemmy with only a small incipient fracture near the the upper right of the the termination.