Native copper - Ray Mine, Arizona, USA
Superb floating specimen of native crystallized copper from...
Superb floating specimen of native crystallized copper from...
Fribroradial erythrine with attractive lustre.2 x 1.8 x 1.5 cm.
Excellent sphene (titanite) of fine size, in perfect condition...
Fribroradiated erythrine with a nice sheen. 2.5 x 1.2 x 0.8 cm.
Fribroradiated erythrine with a nice lustre.1.5 x 1.2 x 1 cm.
Well-crystallized royal blue azurite specimen from the classic...
Well-crystallized royal-blue azurite specimen from the classic...
Small slab of crystallized malachite from Alzon in the Gard...
Iridescent chalcopyrite measuring 1 cm on bright siderite and...
Yellow fluorite with a nice luster on siderite.4.5 x 3.5 x 2.4...
Polished prehnite and epidote cab. 3.2 x 2.8 x 0.5 cm.
Grey mamelony chalcedony half-geode covered with transparent...
Half-geode of orange to white mamelonned chalcedony, from the...
Half-geode of blue to white mamelonned chalcedony, from the...
Floating sphene (titanite) crystal with beautiful lustre.2.1 x...
Group of fine quality axinite crystals on quartz.4.5 x 2 x 1.8...
Group of very fine quartz, brilliant, translucent and...
Small, extremely bright smoky quartz.6.5 x 5 x 3.5 cm.
Extremely bright smoky quartz.4 x 3.7 x 1.3 cm.
Extremely bright smoky quartz.3 x 2.5 x 2.2 cm.
Extremely bright smoky quartz.5.5 x 4 x 3.4 cm
Extremely bright smoky quartz.6.5 x 6 x 4 cm.
Green fibroradial Natrodufrénite measuring up to 5mm in...
Green natrodufrenite spheres. This deposit, discovered by the...
Green fibroradial Natrodufrénite measuring up to 7 mm in...
Green fibroradial Natrodufrénite measuring up to 4 mm in...
Polished plate showing the typical paragenesis of this...
Interesting calcite-to-quartz perimorphoses on smoky quartz....
Interesting calcite-to-quartz perimorphoses on smoky quartz....
Interesting calcite-to-quartz perimorphoses on smoky quartz....
Well-crystallized prehnite enveloping epidote. Original shape...