Quartz with pyrite inclusions - Minas Gerais, Brazil (?)
RARE quartz with superb, well-formed pyrite inclusions...
RARE quartz with superb, well-formed pyrite inclusions...
Translucent quartz with golden rutile inclusions, delicately...
Aerial or elongated specimen of hematite and rutile in...
A set of colorless fluorite crystals, crystallized on both...
Large hematite slab crystallized on both sides, with a nice...
Set of smoky quartz of superb brilliance, well translucent and...
Let's not dwell on the unfortunate small damages present on...
Blue fluorite partially covered with quartz naturally colored...
Smoky quartz with two peaks, beautiful cognac color, superb...
Cavansite in nice-sized clusters as well as laterally in small...
Botryoidal quartz, commonly known as “cluster chalcedony”,...
Very airy construction for these bright, light-green prehnite...
Fluorite from the Beix mine, closed in 1977 and inaccessible...
Pyrite with rare pseudo-rhombohedral* habitus showing growth...
Cute little smoky quartz with a Cumberland habit on a slab of...
Amethyst quartz, slightly smoky, sceptrous and biterminated...
Lustrous smoky quartz crystal with superb transparency. Some...
Fibrous “crosse” or “ram's horn” gypsum, with a shine...
Subtly scintillating, bright turquoise-blue hemimorphite with...
The piece is composed of a first generation of green fluorite...
Piece in excellent condition, featuring superb deep orange...
Colorless, brilliant quartz combined with calcite in folded...
More than a dozen octahedral galena crystals on a sphalerite...
This piece is composed of hessonite garnets, including a...
Specimen of bright red vanadinite, associated with small...
Now a great Indian classic, cavansite remains a rare mineral...
Piece composed of two quartz crystals joined together,...
Floating apple-green pyromorphite crystal from the Daoping...
Dioptase crystals of respectable size (up to 2.1 cm) for the...
Sparkly brotryoidal quartz, very slightly amethysted,...
Small “feather” of native copper with an atypical skeletal...
Native copper with an atypical skeletal structure, due to...