MINERAL SPECIMENS FOR SALE ~ Cal  Neva Mineral Company
   
 

New Mineral Specimens

Updated , 2026

 
 


AD-250  Chalcedony & Agate Geode  $50

Hauser Beds, Thumb Peak, Palo Verde Mountains, Imperial County, CA

8.5 x 8.2 x 3.4 cm

This lithophysae agate from California's Hauser Beds features a brownish-colored center with faintly pinkish highlights.  The chalcedony core is surrounded by a thin line of reddish-pink agate as well as several bands of moss-green.  Classic, older material that agate & thunder-egg collectors hold in high regard.


AD-251  Agate Quartz & Hematite Geode  $65

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

8.7 x 7.6 x 3 cm

A lithophysae agate from Germany's Black Forest. The center of this slate-green agate is filled with quartz crystals.  The vug in the lower-center portion of the nodule has smaller quartz crystals and is outlined by a red-colored mineral, most likely hematite.


AD-253  Agate, Quartz & Calcite  $50

Setz Quarry, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany

8 x 6.5 x .9 cm

A section of a reddish-brown agate nodule with a small area of off-white quartz visible in upper right of specimen. The light-brown portion of this specimen exhibits a strong red-hued fluorescence indicating that this portion of the agate has been replaced by calcite.  A great example of an unusual type of pseudomorph.


AD-252  Agate with Quartz & Hematite  $65

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

15.4 x 12.9 x 4.5 cm

A rather large lithophysae agate from Germany's Black Forest. This specimen exhibits several shades of green accented by patches of brick-red hematite. There is also a patch of colorless quartz with a ring of hematite present in the in left-center of the specimen.


AD-254  Agate with Calcite, Quartz & Hematite  $100

Steinkaulenberg, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany

9.9 x 5.5 x 3.3 cm

This agate features finely banded layers of gray and white which are accented by inclusions of reddish hematite. The agate surrounds a layer of quartz crystals with a faint purple hue that encapsulates a yellowish-white pod of calcite crystals. The upper right-center of this agate features several "eye" formations. The area surrounding the twin cities of Idar & Oberstein gained notoriety for the fantastic Agates & Amethyst lined geodes discovered there in the mid 1500's. By the beginning of the 1800's the production of material had fallen to a small fraction of what was found in its heyday.


AD-255  Agate with Celadonite  $45

Kuhschnappel, Sankt Egidien, Zwickau District, Saxony, Germany

 


AD-256  Agate with Quartz, Goethite& Hematite  $75

Juchem Quarry, Niederwörresbach, Herrstein-Rhaunen, Birkenfeld, Rhineland-Palatinate, Germany

11.2 x 6.2 x 5.3 cm

This agate features finely banded layers of various shades of gray with a core of quartz which is accented by by faintly red inclusions of hematite. The dark specks are due to inclusions of goethite.


AD-257  Agate with Hematite & Quartz  $75

Steinkaulenberg, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany

9.6 x 5.8 x 4.3 cm

This agate features finely banded layers of various shades of gray which which at the bottom are accented by inclusions of dark-red hematite. The agate contains a small vug containing sub-millimeter-sized quartz crystals. The area surrounding the twin cities of Idar & Oberstein gained notoriety for the fantastic Agates & Amethyst lined geodes discovered there in the mid 1500's. By the beginning of the 1800's the production of material had fallen to a small fraction of what was found in its heyday.


AD-258  Agate with Hematite  $55

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

9.3 x 7.4 x 3.5 cm

A lithophysae agate from Germany's Black Forest. This specimen features concentric bands of agate as well as areas of hematite-included agate.


AD-259  Agate with Hematite  $60

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

8 cm x 6.3 cm x 2.8 cm

A lithophysae agate from Germany's Black Forest. This specimen exhibits several shades of green accented by patches of brick-red hematite. There is also a patch of off-white quartz present in the upper center and as a filling in several cracks on the right portion of the specimen.


AD-260  Agate with Hematite  $65

Steinkaulenberg, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany

 


AD-261  Agate with Quartz, Amethyst & Celadonite  $65

Nesselhof, Schnellbach, Floh-Seligenthal, Schmalkalden-Meiningen District, Thuringia, Germany

9.1 x 7.1 x 3.5 cm

Quartz with Amethyst & Agate in Celadonite-included Rhyolite.


AD-262  Agate with Quartz & Hematite  $60

Nowy Kosciól, Gmina Swierzawa, Zlotoryja County, Lower Silesian Voivodeship, Poland

7.9 x 7.4 x 5.1 cm

A lithophysae nodule (thunder egg) from south-western Poland featuring alternating layers of compact quartz crystals and finely-banded agate accented by spots of dark-red hematite.


AD-263  Agate  $50

Börtewitz, Mittelsachsen, Saxony, Germany

5.4 x 4.9 x 1.4 cm

An agate lithophysae nodule (thunder egg) with bands of various shades of blue from the northern part of Mittelsachsen.


AD-264  Chalcedony with Agate & Quartz  $50

Börtewitz, Mittelsachsen, Saxony, Germany

5.1 x 4.7 x 2.8 cm

A lithophysae nodule (thunder egg) with a core of dark chalcedony above a small vug of quartz ringed with dark-red agate.


AD-265  Agate  $120

Estacion Ojo Laguna, Ahumada Municipality, Chihuahua, Mexico

7.4 x 5.6 x 5.9 cm

A mostly black & white agate with areas of yellow. There is a thin band of blue chalcedony around its outer edge. This specimen exhibits a strong green fluorescence when illuminated by SWUV light


AD-266  Agate  $40

Kuhschnappel, Sankt Egidien, Zwickau District, Saxony, Germany

 


AD-267  Agate with Hematite  $55

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

7.4 x 7.6 x 3 cm

A lithophysae agate from Germany's Black Forest. This specimen exhibits several shades of green with a sand-colored center that is accented by patches of red hematite.


AD-268  Agate with Quartz & Hematite  $50

Nowy Kosciól, Gmina Swierzawa, Zlotoryja County, Lower Silesian Voivodeship, Poland

9 x 7.6 x 4.3 cm

A lithophysae nodule (thunder egg) from south-western Poland with bands of blue-grey agate accented by spots of dark-red hematite. The center of the agate has small vug filled with tiny quartz crystals.


AD-269  Agate with Quartz & Hematite  $60

Nowy Kosciól, Gmina Swierzawa, Zlotoryja County, Lower Silesian Voivodeship, Poland

8.7 x 8.1 x 3.1 cm

A lithophysae nodule (thunder egg) from south-western Poland with bands of blue-grey & orange-brown agate accented by red-colored hematite. The upper center of this specimen also has a small vug of tiny quartz crystals.


AD-270  Agate  $40

Rózana, Nowy Kosciól, Gmina Swierzawa, Zlotoryja County, Lower Silesian Voivodeship, Poland

 


AD-271  Agate  $45

Rózana, Nowy Kosciól, Gmina Swierzawa, Zlotoryja County, Lower Silesian Voivodeship, Poland

 


AD-272  Agate  $50

Baker Egg Ranch, Carrizalillo Mining District, Luna County, NM

 

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AD-273  Agate  $45

Setz Quarry, Idar, Idar-Oberstein, Birkenfeld, Rhineland-Palatinate, Germany

 


AD-274  Agate  $60

Waldhambach, Annweiler am Trifels, Südliche Weinstraße, Rhineland-Palatinate, Germany

10.1 x 6.8 x 4.7 cm

This lithophysae agate from Germany features a core of off-white agate outlined by a band of brown agate.


AD-275  Amethyst with Agate  $50

Mount Hay, Wycarbah, Rockhampton Region, Queensland, Australia

5.6 x 4.9 x 1.7 cm

Rhyolite nodule with deeply-colored amethyst surrounded by a thin band of agate. The greenish color of the rhyolite is most likely due to inclusions of celadonite.


AD-276  Amethyst with Agate & Hematite  $50

Schlottwitz, Glashütte, Sächsische Schweiz-Osterzgebirge, Saxony, Germany

15.8 x 9.2 x 1.6 cm

This polished slab features a vein of compact crystals of amethyst between two areas of agate separated by a thin band of reddish hematite. The amethyst varies in hue from faint to deep purple. The label accompanying this specimen reads Schlottwitz, DDR which indicates that this specimen was collected pre-1990 and is most likely much, much older. Rare & old German material from a long-closed location.


AD-277  Calcite & Quartz geode $65

Las Choyas, Aldama Municipality, Chihuahua, Mexico

 


AD-278  Calcite & Quartz geode  $85

Las Choyas, Aldama Municipality, Chihuahua, Mexico

Dimensions: Left 12.2 x 11.5 x 5.2 cm  Right

This geode is a good example of what the tuffaceous ash flow at Las Choyas had to offer in its heyday. The vug of this specimen is lined completely with quartz upon which sits a tower-like formation of tabular calcite crystals. The days when you could get a geode of good quality from Las Choyas at any rock shop are long gone. This specimen came from my personal stash of Las Choyas geodes that were purchased from the Law family, who had the geode concession at the San Diego County Fair during the 1980's & 1990's.


AD-279  Chalcedony & Kaolinite geode  $55

Kemmlitz, Mügeln, Nordsachsen, Saxony, Germany

8 x 7.3 x 2.3 cm

A green-hued thunderegg nodule whose interior is lined with red-brown chalcedony which has a partial coating of finely matted, off-white kaolinite.


AD-280  Chalcedony & Kaolinite geode  $50

Kemmlitz, Mügeln, Nordsachsen, Saxony, Germany

7.5 x 6.8 x 3.1 cm

A green-hued thunderegg nodule whose interior is lined with red-brown chalcedony which has a partial coating of finely matted, off-white kaolinite.


AD-281  Chalcedony and Quartz with Hematite  $50

Lierbach Valley, Oppenau, Oberes Renchtal, Ortenaukreis
Freiburg Region, Baden-Württemberg, Germany

8.5 x 8.3 x 3.3 cm

A lithophysae agate from Germany's Black Forest. This nodule features green and white agate as well as several vugs filled with quartz crystals. The vugs are outlined by a red-brown hematite.


AD-282  Chalcedony  $45

Donorojo, Pacitan Regency, East Java Province, Indonesia

10.1 x 6.6 x 3.7 cm

A nodule of blue-grey chalcedony with reddish-brown accents (probably Fe-oxides).



click on image for larger view

AD-283  Fire Agate  $150

El Cobre, Tepezalá Municipality, Aguascalientes, Mexico

8.8 x 7.5 x 4.2 cm

A large specimen of fire agate featuring iridescent colors of orange, yellow-green & various shades of reddish-brown.  Fire agate has a botryoidal or grape-like growth form that contains layers of plate-like crystals of iron oxide (limonite) in various planes.  Fire agate is one of the rarest forms of agate, being found only in central Mexico and the southwestern United States.


AD-284  Jasper  $45

Al Qahirah, Cairo Governorate, Egypt

 



AD-285  Pyrite  $100

Dongchuan Cu Ore Field, Dongchuan District, Kunming, Yunnan, China

5.8 x 5 x 4.7 cm

This specimen features numerous pyrite crystals that have formed in concentric rings on a spherical nodule of shale.  These distinctive & quite singular specimens were found for a short time in the late 2000's.


AD-286 Quartz, Calcite & Chalcedony geode  $50

Las Choyas, Aldama Municipality, Chihuahua, Mexico

 


AD-287  Quartz, Calcite & Chalcedony geode  $50

Las Choyas, Aldama Municipality, Chihuahua, Mexico



AD-288  Quartz, Calcite & Chalcedony geode  $50

Las Choyas, Aldama Municipality, Chihuahua, Mexico

 


AD-289  Quartz, Chalcedony & Siderite geode  $45

Las Choyas, Aldama Municipality, Chihuahua, Mexico

 


G-171  Almandine with Cleavelandite on Quartz & Albite  $60

Southern Pacific Silica Quarry, Nuevo, Lakeview Mountains, Riverside County, CA

4.3 x 3.1 x 2.4 cm

A crystal of almandine with a small group of cleavelandite crystals embedded in its side perched on pegmatite matrix.  The matrix of this specimen consists of quartz, albite and muscovite. There are also several smaller garnets embedded in the matrix.  The almandine crystal measures 2 x 2 x 2 cm and is complete with only a small area of contacting where it formed against another Garnet. Specimens from this location are seldom seen and are highly prized by collectors of Southern California pegmatite minerals. This location is on private land has been closed to collecting for a number of years now.


G-172  Almandine  $50

Valle de Trinidad, Ensenada Municipality, Baja California, Mexico

1.6 x 1.5 x 1.5 cm

A complete all-around crystal of deeply-colored, red Almandine.  This specimen has slightly rounded edges most likely due to alluvial action.  Specimens from this remote pegmatite are extremely rare and almost never seen for sale.

 


Q-622  Amethyst  $50

Purple Heart Mine, Kingston Peak, Kingston Range District, San Bernardino County, CA

 



Q-623  Citrine with Malachite  $60

Quartz occurrence, Luena, Haut-Lomami, DR Congo

5.2 cm x 3.7 cm x 3.7 cm

A mostly clear golden-hued crystal of quartz with numerous smaller quartz crystals at its base. The smaller crystals are accented by a coating of sparkly, green-colored malachite.


Q-624  Quartz with Actinolite inclusions  $250
Ex Kerith Graeber
A. L. McGuinness

Grizzly Ridge, Plumas County, CA

7.7 x 2.6 x 2.4 cm

A very clear and well-defined quartz crystal included with green & white-colored Actinolite.  Collected June, 1951 by A. L. McGuinness.


Q-629  Quartz with Cookeite  $150

Bennett Quarry, Buckfield, Oxford County, Maine, USA

11.3 x 12.1 x 5.9 cm

A large group of doubly terminated quartz crystals exhibiting parallel growth accented by patches of silvery-green cookeite.


Q-625  Quartz with Adularia inclusions  $75

Hamilton Hill Mine, Jessieville, Garland County, Arkansas, USA

13.8 x 5 x 3.3 cm

A large crystal of quartz with gem-clear termination that has been included by many small crystals of adularia.  This crystal is from a small project in 2013 that yielded adularia and quartz combination specimens considered to be unique in quality and size for North America.



Q-626  Quartz with Anatase, Brookite & Chlorite  $125

Zard Mountain, Ras Koh Mountains, Kharan District, Balochistan, Pakistan

9.2 x 6.7 x 4.1 cm

A large group of translucent to transparent quartz crystals that are coated with chlorite. Also present on this specimen are dozens of anatase crystals measuring up to 7 mm in size as well as several crystals of reddish-brown hued brookite, the largest of which measures 1 x 1.2 mm. This specimen is from a find made in 2012.



Q-627  Quartz with Calcite  $60

Potrero Chico, Sabinas Hidalgo Municipality, Nuevo León, Mexico

 


Q-628  Quartz with Chlorite inclusions  $50

Schin gorge, Grisons, Switzerland

6.5 x 3.9 x 2.4

A translucent crystal of quartz that showing inclusions of dark-green chlorite that has been overgrown with clear quartz.


Q-630  Quartz with Hematite inclusions $45

Crystal Park area, Crystal Park, El Paso County, CO

4.1 x 3.7 x 2.9 cm

A group of very clear and lustrous quartz crystals that have been included with brick-colored hematite.  



Q-631  Quartz with Pyrite inclusions  $150

Serra do Cabral, Buenópolis, Minas Gerais, Brazil

 



Q-632  Quartz with Pyrite inclusions  $100

Serra do Cabral, Buenópolis, Minas Gerais, Brazil

 


Q-633  Quartz with Rutile & Brookite inclusions  $65

Kharan District, Balochistan, Pakistan

 



Q-634  Quartz with Stilpnomelane & Chlorite  $50

Landsverk 1 Feldspar Quarry, Landsverk, Evje og Hornnes, Agder, Norway

9.8 x 6.7 x 4.4 cm

A group of several quartz crystals with a thin coating of chlorite and patches of brownish stilpnomelane.


Q-635  Quartz with Tourmaline inclusions  $65

PC Mine, Cataract Mining District, Jefferson County, MT

 


Q-636  Quartz (Japan-law twin)  $75

Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, AZ

 


T-386  Elbaite  $75

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

 



C-334  Calcite  $85

Minerva #1 Mine, Ozark-Mahoning Group, Cave-In-Rock, Hardin County, IL

 

 


F-327  Plagioclase var. Anorthite (rough & cut)   $225

Harney Mining District, Harney County, OR

Specimen size =
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A-130  Azurite with Malachite  $45

Malbunka Copper Mine, Areyonga, Gardiner Range, MacDonnell Region, Northern Territory, Australia

 


A-131  Azurite  $50

Malbunka Copper Mine, Areyonga, Gardiner Range, MacDonnell Region, Northern Territory, Australia

 


A-132  Azurite  $50

Malbunka Copper Mine, Areyonga, Gardiner Range, MacDonnell Region, Northern Territory, Australia

 


A-133  Azurite  $40

Malbunka Copper Mine, Areyonga, Gardiner Range, MacDonnell Region, Northern Territory, Australia

 


A-134  Azurite  $80

Malbunka Copper Mine, Areyonga, Gardiner Range, MacDonnell Region, Northern Territory, Australia

 


C-335  Ruby with Mavenite  $35

Mysore Corundum Deposits, Karnataka, India