Grape agate - Mamuju, Sulawesi, Indonesia
Quartz of the Indonesian amethyst variety, known commercially...
Quartz of the Indonesian amethyst variety, known commercially...
Light-blue evansite crystals (rare amorphous aluminum...
Botryoidal quartz, shimmering in the light, commonly called...
Botryoidal quartz, commonly called "cluster chalcedony", has a...
Botryoidal quartz, shimmering in the light, commonly called...
Isolated cavansite pompom with beautiful terminations....
Isolated cavansite pompom with beautiful...
Isolated cavansite pompom with beautiful...
Bright, lemon-yellow brucite. The reverse side of the piece...
Bright, lemon-yellow brucite.3.5 x 1.8 x 0.6 cm
Bright, lemon-yellow brucite.4 x 2.5 x 1.3 cm
Two quartz points joined together, the main one being of good...
A group of very fine quality smoky and brilliant quartz.4 x...
A group of very fine quality smoky and brilliant quartz. 3 x...
A specimen composed of several quartz crystals, one of which...
Beautiful blue botryoidal gibbsite from China.2.8 x 2 x 1.7 cm
Beautiful blue botryoidal gibbsite from China.3 x 2 x 0.9 cm
Beautiful blue botryoidal gibbsite from China.3.5 x 2.2 x 1.5 cm
Small piece composed of several wavellite spheres of different...
Small, architecturally appealing piece composed of several...
Small piece composed of several wavellite spheres of different...
A rare amorphous aluminum phosphate, evansite is shown here in...
New for 2023: quartz from Madagascar with hydrocarbon...
New for 2023: Madagascar quartz with hydrocarbon inclusions,...
New for 2023: Madagascar quartz with hydrocarbon inclusions,...
New for 2023: quartz from Madagascar with hydrocarbon...
New for 2023: quartz from Madagascar with hydrocarbon...
New for 2023: quartz from Madagascar with hydrocarbon...
New for 2023: quartz from Madagascar with hydrocarbon...