Malcolm Alter

Fluorite with Manganese oxide inclusions image

Fluorite with Manganese oxide inclusions

Chalcanthite image

Smithsonite (Copper-rich) image

Smithsonite (Copper-rich)

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Chenevixite, Cuprite image

Chenevixite, Cuprite

Rhodochrosite, Chlorite-included Quartz image

Rhodochrosite, Chlorite-included Quartz

Quartz Japan-Law twin image

Quartz Japan-Law twin

Wulfenite image

Vanadinite image

Wulfenite, Vanadinite image

Wulfenite, Vanadinite

Epidote, Orthoclase image

Epidote, Orthoclase