Mark Hughston

Calcite image

Barite, Quartz, Epidote image

Barite, Quartz, Epidote

Quartz pseudomorph after Calcite image

Quartz pseudomorph after Calcite

Calcite (Manganese-rich) image

Calcite (Manganese-rich)

Pyrite, Quartz image

Fluorite, Celestine image

Fluorite, Celestine

Fluorite image

Fluorite image

Fluorite, Quartz image

Fluorite, Quartz

Fluorite, Muscovite image

Fluorite, Muscovite

Fluorite, Quartz image

Fluorite, Quartz

Wavellite image

Quartz pseudomorphs after Calcite image

Quartz pseudomorphs after Calcite

Pyrite image

Fluorite image

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