Dioptase - Brazzaville, Republic of the Congo
Dioptase crystals of respectable size (up to 2.1 cm) for the...
Dioptase crystals of respectable size (up to 2.1 cm) for the...
Sparkly brotryoidal quartz, very slightly amethysted,...
A combination of chalcopyrite, triglyph pyrite, sphalerite and...
Dioptase in honorable-size crystals, brilliant, in excellent...
Landscape stone from China, rectangular in shape, in the...
Landscape stone from China, rectangular in shape, in the...
Beige baytine crested pompom, rather shiny, not 100% perfect...
Dark-red vanadinite crystals of superb brilliance, with gemmy...
Small “feather” of native copper with an atypical skeletal...
Native copper with an atypical skeletal structure, due to...
Native copper with an atypical skeletal structure, due to...
Large piece of white barite pompons from the Malines mine in...
Set of smoky, fairly bright quartz of fine quality.3.7 x 2.9 x...
Group of smoky and biterminated quartz from a small Australian...
Adorable association of small calcite, siderite and quartz...
Small bright hematite crystals on a stabilised basalt...
Small bright hematite crystals on a stabilised basalt...
Small bright haematite crystals on a stabilised basalt...
Aerinite veneer from Saint Pandelon in the Landes region of...
Pinite (cordierite pseudomorphosed into muscovite) single...
Pinite (cordierite pseudomorphosed into muscovite) single...
Several crystals of proustite of good size (centimetre), and...
Slab of very shiny quartz very lightly sprinkled with...
Finely crystallised hematite with a beautiful metallic sheen...
Piece composed of a multitude of green, translucent and very...
Gypsum in excellent condition, very fine quality, with...
Plate composed of multiple colorless fluorite crystals,...
Transparent, well-developed quartz crystals with smooth, shiny...
Yellow fluorite with blue edging typical of its locality.2.5 x...
Fluorite with truncated edges, pretty purple ghosts and a...
Fluorite with truncated edges, pretty purple ghosts and a...