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Ore

Ore

14 items

Close-up of a dark biotite gneiss with a rounded purple garnet in the centre, surrounded by glassy grains, black and orange-brown flakes and scattered pale brassy sulphide patches. — Garnet with sulphide inclusions in a Precambrian biotite gneiss from the Alutaguse zone, East Estonia. Sophie Graul

Micro textures of Estonian shelly phsophorites Sophie Graul

Polished slab of massive fluorite, translucent pale green, grey and white with wavy bands edged in orange, and deep purple zones with angular crystal shapes towards the bottom. — Hydrothermal fluorite from La Barre, France Sophie Graul

Close-up of a long, dark grey shell fragment with fine pale stripes and thin glittering lines, beside a clear rounded quartz grain and surrounded by smaller glassy grains. — Pyritised shell fragment from the Toolse phosphorite deposit, Estonia Sophie Graul

Close-up of a polished rock surface with a curved cream and orange shell fragment, dark pores and rounded grains set in a mottled yellow, orange and white carbonate cement. — Iron-rich shelly phosphorite, Estonia Sophie Graul

Close-up of a long shell fragment striped in reddish brown, cream and dark lines, set among clear rounded quartz grains and pale yellow and olive banded material in a white cement. — Iron-rich shell fragment cemented by carbonate from the Kabala phosphorite deposit, Estonia Sophie Graul

Close-up of a rounded shell fragment with stripes of rusty orange, dark brown and olive green, surrounded by small glassy grains in a pale cement. — Iron-rich shelly phosphorite, Estonia Sophie Graul

Close-up of many thin, elongated shell fragments in grey, black and cream, lying roughly parallel in a sparkling white crystalline cement. — Carbonate-cemented shells in Estonian phosphorites, from the Toolse deposit Sophie Graul

Close-up of a cavity in a cream rock lined with small cubic fluorite crystals in yellow, green and lilac, edged by a rim of tiny white sparkling quartz crystals. — Close-up of cubic fluorite crystals Sophie Graul

Polished slab with a large cluster of lilac and pale green fluorite crystals and many smaller dark purple fragments, all set in cream and orange chalcedony. — Hydrothermal fluorite from la Barre former mine, France Sophie Graul

Close-up of pale green and cream fluorite enclosing clusters of deep purple octahedral crystals with sharp angular outlines and thin white edges. — Zoned fluorite from La Barre former mine, France Sophie Graul

Close-up of a flat cluster of torbernite flakes glowing pale yellow-green with blue patches against a dark blue background, seen in a round microscope view. — Torbernite flakes from les Bois Noirs, France Sophie Graul

Person in a checked shirt and woven conical hat carrying a battered basin full of reddish rock fragments on their head, in front of a reddish-brown excavated slope. — Gold mining on the Shan Plateau, Myanmar Ian Watkinson

Close-up of a skarn rock with fans of radiating golden-green hedenbergite crystals intergrown with black ilvaite and patches of pinkish mineral, a 20 cent euro coin for scale. — Hedenbergite - Ilvaite skarn, Calamita, Island of Elba Samuele Papeschi

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