Tourmaline, quartz, and lepidolite - Stak Nala,...
This specimen features a well-formed tourmaline crystal...
This specimen features a well-formed tourmaline crystal...
A hematoid quartz point with polished faces from Guipavas in...
Numerous small octahedrons, with a lovely violet color, are...
Two crystals, including a scepter, of twinned hematite quartz...
A specimen featuring iridescent goethite, also known as...
A coating of crocoite in a lovely red-orange hue, typical of...
Epidote in small, well-formed crystals ranging in colour from...
A rhodochrosite single crystal with a lovely, deep red-pink...
A small, highly translucent piece of amber with a clearly...
A small, well-formed specimen consisting of pyromorphite...
A specimen featuring iridescent goethite, also known as...
Azurite sphere from the famous Chessy-les-Mines deposit in the...
A charming specimen composed of grass-green acicular...
A small slab composed of highly lustrous haematite quartz...
Set of two twinned amethyst and haematite quartz crystals...
A set of two small pieces of axinite from a relatively...
Golden-coloured rutile needles (titanium dioxide) epitaxially...
A small epidote single crystal from Italian Rodingites,...
A perfectly formed, free-standing single crystal of zunyite,...
A small cluster comprising numerous apple-green pyromorphite...
A cluster of beautifully lustrous, well-sized apophyllite...
A lovely little association of arsenopyrite and apatite...
Polished and varnished red gypsum nodule on marly matrix.10.4...
A small single crystal of cassiterite, a tin mineral, with a...
A cluster of morion quartz crystals partially covered with...
Two crystals, including a bipyramidal anatase with a beautiful...
A piece of amber in a deep orange hue, polished on almost all...
A cluster of small, extremely brilliant and translucent yellow...
A specimen consisting of small, slightly mauve fluorite...
Small, needle-like crystals of aurichalcite with a lovely...
A small specimen of dioptase with a beautiful lustre,...