Gypsum - Angervilliers, Essonne, France
Group of translucent gypsum crystals from the former...
Group of translucent gypsum crystals from the former...
Botryoidal quartz, commonly known as "agate grappe",...
Fibrous malachite with an elegant structure, enhanced by a...
Group of grossular garnets on gangue from a site classified as...
Small block of bright, surface-crystallized pyrite from the...
Piece composed of fluorite with shiny surfaces, embedded in...
Several colorless centimetric calcites of fine quality and...
Bright beige/green petal siderite plate in good condition. The...
Goethite, very finely crystallized on the surface, with...
Tabular "sandwich" wulfenite from the former Mežica mines in...
Floating plate of quartz crystallized along ridges showing no...
A plate of grey quartz with good surface brilliance, partially...
A shiny, pseudo-cubic green apophyllite (relatively rare!)...
Set of very bright and large apophyllite crystals associated...
Green to yellow apophyllite (color related to inclusions) of...
Apophyllite pseudo-cubic crystals on basaltic matrix.6.5 x 6 x...
Bright green apophyllite crystals on basaltic matrix.5.5 x 4 x...
White, almost transparent calcite, very finelly crystallized...
Galena associated with a little fluorite (massive) at the...
Plate composed of bournonite crystals in cogwheels and...
Crystals of a bright red and very brilliant. 2,4 x 1,3 x 0,8 cm.
Bright malachite on the surface, having replaced a group of...
Association of fluorite in small violet to colorless crystals,...
Bright red, gemmy and brilliant sphalerite, nestled within...
Epidote in elongated, shiny, well-terminated crystals,...
Single crystal of vesuvianite in elongated prism relatively...
Front and back crystallized piece : on the front, well...
Specimen composed of numerous native silver dendrites on...