Lightning Ridge in New South Wales, Australia is the world's only significant commercial source of black opal - the rarest and most valuable form of opal. Premium quality semi-black and crystal opal is also found in this area. Mining commenced in 1902 and it continues today on approximately two hundred distinct opal fields.
Flashy blues and greens in a pendant stone facing nicely when oriented in either
direction. Your design possibilities are almost unilimited with this opal.
Another inexpensive picture stone for everyday wear that has translucent dark-base
opal mixed with some black. Nice shape for simple but attractive pendant.
Very nice ring stone here showing mixed bright blues and greens from all
directions. Good size and shape for a big bold ring design.
Translucent dark base opal with green, blue, and red! The glowing colors deep
within this stone and elegant shape will make for a great piece of jewelry.
Wonderful value here in another very showy picture stone. It's sure to attract
lots of attention even if set in the simplest pendant design.
Nice pattern in a translucent opal with some small black and white potch
inclusions. Rather large Ridge opal for such a small price.