Chalcedony

 Trevascus Mine, Gwinear, Cornwall, England, Europe A convoluted specimen of rope-like ridged Chalcedony with a translucent light brown to yellow-brown...

 Jalgaon, Maharashtra, India, Asia An excellent structural sculptured display of  Chalcedony as an arching window onto a...

 Trevascus Mine, Gwinear, Cornwall, England, Europe A very fine large specimen of wax-melt Chalcedony from a classic Cornish location. Excellent...

 Mega Horio, Serifos Island, Cyclade Islands, Kykládes Prefecture, Aegean Islands Department, Greece A dome of Andradite garnet encloses an underlying matrix of dark olive-green Hedenbergite from the...