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Canon EOS 5D

EGM.9928

Topaz

Phil McCollum

Canon EOS 5D

EGM.10032

Quartz and amethyst, side B

Phil McCollum

Canon EOS 5D

EGM.10032

Quartz and amethyst, side A

Phil McCollum

Canon EOS 5D

EGM.10289

Adamite

Phil McCollum

Canon EOS 5D

EGM.10289

Adamite, detail

Phil McCollum

Canon EOS 5D

EGM.10509

Schorl

Phil McCollum

Canon EOS 5D

EGM.11176

Aragonite

[Phil McCollum, Jack Murphy]

Canon EOS 5D

EGM.11176

Aragonite, detail

[Phil McCollum, Jack Murphy]

Canon EOS 5D

EGM.11177

Aragonite

[Phil McCollum, Jack Murphy]

Canon EOS 5D

EGM.11178

Aragonite

[Phil McCollum, Jack Murphy]

Canon EOS 5D

EGM.11193

Wulfenite

Phil McCollum

Canon EOS 5D

EGM.11193

Wulfenite, detail

Phil McCollum

Canon EOS 5D

EGM.11255

Quartz, piece B

Phil McCollum

Canon EOS 5D

EGM.11255

Quartz, piece A

Phil McCollum

Canon EOS 5D

EGM.11270

Malachite

Phil McCollum

Canon EOS 5D

EGM.11391

Rhodochrosite

Phil McCollum

Canon EOS 5D

EGM.11391

Rhodochrosite, detail

Phil McCollum

Canon EOS 5D

EGM.16900

Microcline

Phil McCollum

Canon EOS 5D

EGM.18128

Quartz

Phil McCollum

Canon EOS 5D

EGM.18129

Calcite

Phil McCollum

Canon EOS 5D

EGM.18130

Quartz

Phil McCollum

Canon EOS 5D

EGM.18172

Nephrite

Phil McCollum

Glass Negative 5x7

00-879.1.N

Calcite Specimen

[J.W. Jackson, David E. Shra

Glass Negative 5x7

00-879.2.N

Calcite Specimen

[J.W. Jackson, David E. Shra

Glass Negative 5x7

00-1009A.N

Microphoto of a Rock section

[David E. Shrader, David E.

Glass Negative 5x7

00-1067B.N

Specimen of native silver on …

[J. H. Little, David E. Shra

Glass Negative 5x7

00-1068B.N

Specimen of Calaverite from …

[David E. Shrader, J. H. Lit

Canon EOS 5D

EGM.1163

Ferberite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.1288

Hulsite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.1912

Actinolite and Uralite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.1912

Actinolite and Uralite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.2247

Pearceite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.2391

Chlorargyrite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.2559

Ferberite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.4969

Fluorite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.6411

Riebeckite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.8416

Calcite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.8976

Almandine

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.9759

Ferrimolybdite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.10517

Opal

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.11079

Muscovite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.11355

Actinolite and Uralite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.11663

Dolomite, view C

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.12493

Corundum

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.12510

Epidote

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.12650

Dolomite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.12801

Quartz

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.12857

Muscovite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.13315

Scapolite

[Phil McCollum, Clayton Powe

Canon EOS 5D

EGM.14518

Fluorite

[Clayton Powers, Phil McColl