Native arsenic - Filon Saint-Jacques, Neuenberg,...
Not common! Native arsenic showing natural dissolution. This...
Not common! Native arsenic showing natural dissolution. This...
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...
Group of smoky and biterminated quartz from a small Australian...
Dalnegorsk fluorites are renowned for the purity of their...
Set of quartz points, one of which is biterminated, with shiny...
Small piece composed of several wavellite spheres of different...
Small piece composed of several wavellite spheres of different...
A small, well-finished crystal with beautiful brightness and...
Well-finished crystal with beautiful brightness and...
Set of two cubes of translucent violet fluorite revealing...
Set of translucent violet fluorite cubes with shiny surfaces,...
Fluorite cubes with lovely, bright purple phantoms contrasting...
Naturally interlocking pyrite crystals with mirror-like lustre...
Airy set of vanadinite crystals of varying sizes, displaying...
Small, extremely bright and well-formed green demantoid...
Small, extremely bright and well-formed green demantoid...
Small, extremely bright and well-formed green demantoid...
Beautifully brilliant sceptered quartz with hydrocarbon...
Beautifully brilliant sceptered quartz with hydrocarbon...
Beautifully brilliant sceptered quartz with hydrocarbon...
Beautifully brilliant sceptered quartz with hydrocarbon...
Beautifully brilliant quartz with hydrocarbon inclusions,...
Beautifully bright sceptered quartz with hydrocarbon...
Beautifully bright sceptered quartz with hydrocarbon...
Beautifully bright sceptered quartz with hydrocarbon...
Beautifully bright sceptered quartz with hydrocarbon...
Beautifully bright sceptered quartz with hydrocarbon...
Beautifully lustrous, windowed sceptrous quartz with...
Fluorite with a bright orange-yellow colour, crystallised on a...
A group of quartz with brown and green chlorite inclusions,...