Firefly quartz with petroleum inclusions - Madiroba, Besalampy...
New in 2023: Madagascar quartz with hydrocarbon inclusions,...
New in 2023: Madagascar quartz with hydrocarbon inclusions,...
New in 2023: Madagascar quartz with hydrocarbon inclusions,...
A group of very well-formed violet curved octahedrons from an...
Slightly yellow stalactite calcite, with small, translucent,...
Slightly yellow stalactite calcite, topped by a cluster of...
Fine, colorless, fairly shiny stalactite calcite. 3,7 x 0,6 x...
Slightly yellow stalactite calcite, with fine translucent...
Slightly yellow, shiny stalactite calcite, topped by a cluster...
Slightly yellow, shiny calcite with extremely fine...
Slightly yellow stalactite calcite, topped by a cluster of...
Slightly yellow stalactite calcite, topped by a cluster of...
Slightly yellow, brilliant calcite, composed of extremely fine...
Slightly yellow stalactite calcite, topped by a cluster of...
Quartz crystals mostly covered with azurite and associated...
Small group of well-terminated quartz, partially coated with...
Perfect azurite single crystal, both in color, brilliance and...
Small group of bright, well-terminated azurite crystals. The...
Small group of bright, well-terminated azurite crystals. 2,2...
Small group of bright, well-terminated azurite crystals. 1,4...
Small group of bright, well-terminated azurite crystals. 1,4...
Single crystal of wulfenite, imperfect but of good size,...
Bunch of well-formed, brilliant wulfenites, accompanied by...
Bright, translucent, imperfect wulfenite single crystal with...
Shiny, well-formed wulfenite crystals perched on small...
Botryoidal quartz, commonly called "cluster chalcedony", has a...
Botryoidal quartz, sparkling in the light, commonly known as...
Botryoidal quartz, commonly known as "cluster chalcedony",...
Superb, highly original thumbnail of bicolor botryoidal quartz...
Superb bicolor botryoidal quartz thumbnail with a few green...
Botryoidal quartz, commonly called "cluster chalcedony", with...
Fine slab of green botryoidal chalcedony with celadonite...
Quartz of the Indonesian amethyst variety known as 4,5 x 3,9 x...