Small quantities of amethyst, peridot, and black opal are also produced.
From the en.wikipedia.org
The interior makes a nonsense of the black-opal seascape outside, and the auditoria don't work.
From the guardian.co.uk
The black opal at one stage was a Group 2 race.
From the canberratimes.com.au
The 18-karat white gold setting holds 4.04 carats of a black opal that shoots out mesmerizing blues and greens.
From the orlandosentinel.com
Opal-black fruit attracts birds in late summer.
From the dispatch.com
Lightning Ridge is home to Australia's national gemstone, the opal, and has the largest known deposits of black opals and opal gemstones in the world.
From the couriermail.com.au
Maloney likes to use oregano or opal basil, a purple-black variety.
From the omaha.com
Opal, particularly the highly-prized black variety endemic to The Ridge, is an elusive and demanding master, so any hint to the inside running is more than welcome.
From the nzherald.co.nz
A pair of sterling-silver hoops with labradorite, marble-gray moonstone and cats-eye opal is $155, down from $390, and a black silver agate cuff is $145, down from $290.