MEET THE EARTH’S HISTORIAN: Klaus Knie used this 25 cm-thick ferromanganese crust sampled from the depth of 4,830m in the Pacific Ocean to trace the Fe-60 isotopes.

MEET THE EARTH’S HISTORIAN: Klaus Knie used this 25 cm-thick ferromanganese crust sampled from the depth of 4,830m in the Pacific Ocean to trace the Fe-60 isotopes.

"forrest fire" Black Opal

A4 size poster "forrest fire"

{Haute Jewel Worthy} Margot McKinney Solid Natural Boulder opal ring with a central 24.05ct opal from the Lightning Ridge mine in McKinney’s native Australia, which is renowned for its opals. HT

A month of magnificent opal jewellery: the birthstone of October

{Haute Jewel Worthy} Margot McKinney Solid Natural Boulder opal ring with a central 24.05ct opal from the Lightning Ridge mine in McKinney’s native Australia, which is renowned for its opals. HT

Tellurium crystal-- Rare Element on Earth Discovered in Ancient Starlight

Rare Element on Earth Discovered in Ancient Starlight

Tellurium crystal-- Rare Element on Earth Discovered in Ancient Starlight

55cts Fabulous Rainbow Natural Ethiopian Welo Crystal Specimen Opal Rough

55cts Fabulous Rainbow Natural Ethiopian Welo Crystal Specimen Opal Rough

Fabulous Rainbow Natural Ethiopian Welo Crystal Specimen Opal Rough .. Amazing

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