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Russ Rizzo's Photo Gallery

PLJ-2L3Tourmaline A(D3)G6(Si6O18)(BO3)3X3Z

06307370015680988655294.jpg
Vista, San Diego County, California, USA

Dimensions: 2.1 cm x .6 cm x .5 cm

3 views of a double-terminated, greenish-colored tourmaline crystal with dark green-black terminations. Rare, old-time SD County material. Collected in 1951 from Breeze Hill. Although the photos may not convey it, this crystal is mostly transparent without needing to be backlit.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 998599     Uploaded by: Russ Rizzo   View Count: 7   Approval status: Public galleries    Type: Photo - 950 x 650 pixels (0.6 Mpix)

UYA-DQRAnalcime Na(AlSi2O6)·H2O , Natrolite Na2Al2Si3O10·2H2O

06536150015659238873616.jpg
Ciamp Pinoi, Siusi Alp, South Tirol, Trentino-Alto Adige, Italy

Dimensions: 8.6 cm x 4.2 cm x 3 cm

A vug-like specimen of Analcime crystals flanked by acicular sprays of colorless Natrolite.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 988397     Uploaded by: Russ Rizzo   View Count: 12   Approval status: Public galleries    Type: Photo - 1164 x 1200 pixels (1.4 Mpix)

A1W-Q52Andradite Ca3Fe3+2(SiO4)3

05205190015658533367695.jpg
Sinerechenskoe skarn occurrence, Primorsky Krai, Russia

Dimensions: 15.3 cm x 6.8 cm x 7.2 cm

This specimen consists of many well-developed, glassy and transparent crystals of Andradite. The crystals on this specimen range in color from cinnamon to yellow-brown. In this photo many of the crystals appear to be darker than they really are because of the fact that the specimen is one mass of Andradite crystals cemented together by iron oxides.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 984884     Uploaded by: Russ Rizzo   View Count: 13   Approval status: Public galleries    Type: Photo - 1520 x 1000 pixels (1.5 Mpix)

0G6-6CRChabazite-Ca (Ca,K2,Na2)2[Al2Si4O12]2·12H2O , Calcite CaCO3

06646000015656788126353.jpg
Juchem Quarry, Niederwörresbach, Birkenfeld, Rhineland-Palatinate, Germany

Dimensions: 14.4 cm x 12.2 cm x 7.4 cm

An example of one of the more elusive mineral species from the Juchem Quarry; Chabazite-Ca. This specimen features many twinned and translucent~transparent crystals of Chabazite perched on opaque prisms and massive Calcite which exhibit an intense red-colored fluorescence.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 984301     Uploaded by: Russ Rizzo   View Count: 16   Approval status: Public galleries    Type: Photo - 2100 x 1600 pixels (3.4 Mpix)

802-9XMGold Au , Quartz SiO2

07725180015655956725401.jpg
Brusson Mine, Brusson, Aosta Valley, Italy

Dimensions: 3.2 cm x 2.6 cm x 1.3 cm

When it comes to Alpine minerals, Gold is far from the top of the list. This specimen features wispy gold that is crystallized and a little leaf-like in appearance.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 984102     Uploaded by: Russ Rizzo   View Count: 18   Approval status: Public galleries    Type: Photo - 1400 x 900 pixels (1.3 Mpix)

AMH-AFQCalcite CaCO3 , Quartz SiO2 , Baryte BaSO4

06321870015655948944659.jpg
Juchem Quarry, Niederwörresbach, Birkenfeld, Rhineland-Palatinate, Germany

Dimensions: 13.6 cm x 9 cm x 8.5 cm

This geode is lined with tiny crystals of Quartz upon which rest many golden-colored crystals of Calcite. The crystals in the rear of the chamber are coated by the mineral Barite. The Calcite fluoresces a creamy-yellow and the Barite fluoresces white.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 984096     Uploaded by: Russ Rizzo   View Count: 16   Approval status: Public galleries    Type: Photo - 1316 x 1222 pixels (1.6 Mpix)

YKN-AHNCorundum (Var: Sapphire) Al2O3

08573670015625770092758.jpg
San Jacinto Mts, Riverside Co., California, USA

Dimensions: 13.2 cm x 14.4 cm x 8 cm

This specimen comes from the mountains of southern California where my friend, Dana Gochenouer, goes every now and then to harvest the mineral bounty that is to be had there. This area is considered among the best Corundum localities in the United States. This specimen consists of 4 grayish-blue terminated Corundum crystals on a matrix of Biotite Schist. The largest of which measuring 10.2 x 1.4 centimeters. This location had long been rumored to have large Corundum crystals, but until Dana and his late brother, Ken, pinned down exactly where the crystals occurred, did any see the light of day. When specimens were offered for sale, despite being repaired, they became instant classics and today are still highly desirable. Very few examples of this material are recovered that have more then one crystal on the matrix. This specimen has been repaired, which is typical for the size and quality.
Copyright: © Russ Rizzo & Cal Neva Mineral Company      Photo ID: 965831     Uploaded by: Russ Rizzo   View Count: 36   Approval status: Public galleries    Type: Photo - 2000 x 1600 pixels (3.2 Mpix)

T4E-64CChalcedony (Var: Agate) SiO2 , Quartz SiO2

09756480015623085975341.jpg
Paraíba, Brazil

Dimensions: 7.6 cm x 4.2 cm x 6.7 cm

This peculiar polyhedroid specimen is from Paraíba, Brazil which is famous for its distinctive Blue-colored Tourmaline due to their high Copper content. These remarkable Agates were first found in 1974 by Odwaldo Monteiro and are all but impossible to obtain these days as the supply has been exhausted for many years. These anomalies of the Quartz family are occasionally seen for sale as polished slabs. It is rare that an intact example is seen for sale. I've done quite a lot of research trying to determine how these mineral oddities are formed. There are many hypotheses as to how these are formed. However, in the course of my research I have found that no two theories are the same. So just enjoy these for what they are, a most unusual Agate specimen.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 965244     Uploaded by: Russ Rizzo   View Count: 18   Approval status: Public galleries    Type: Photo - 1250 x 900 pixels (1.1 Mpix)

AGY-H7WQuartz (Var: Chalcedony) SiO2

04270150015623083056742.jpg
Grundy Co., Tennessee, USA

Dimensions: 708 cm x 7.1 cm x 2.3 cm

This colorful specimen comes from what has been, for me, the most elusive Agate locality in the United States. Specimens of this material are few and very far between. This Agate has a nearly clear interior that is colored red by Hematite and accented by numerous tiny inclusions of an undetermined mineral. Strawberry Agate is an apt moniker for this material as you can see this specimen when sawn and polished looks very much like the interior of a strawberry.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 965243     Uploaded by: Russ Rizzo   View Count: 16   Approval status: Public galleries    Type: Photo - 1450 x 1200 pixels (1.7 Mpix)

3XE-YADChalcedony (Var: Agate) SiO2 , Quartz SiO2

Multiple photos available
08570210015623080196385.jpg
Salto do Jacuí, Rio Grande do Sul, Brazil

Dimensions: 20.8 cm x 19 cm x 2.8 cm

A visually striking section of an Agate and Quartz nodule. This specimen features many orbs of white and blue-hued Agate surrounded by finely crystallized translucent-transparent Quartz. This Agate's winter colors just add to the visual impact of the specimen.
Copyright: © Russ Rizzo & CAL NEVA MINERAL COMPANY      Photo ID: 965240     Uploaded by: Russ Rizzo   View Count: 44   Approval status: Public galleries    Type: Photo - 1850 x 1650 pixels (3.1 Mpix)
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