Koroit is right in the heart of Outback Queensland. The opals from here are unlike opals from anywhere else in the world.

Black Opal from Koroit, Australia. Koroit is located approximately 1000 kilometres from the east coast of Australia, right in the heart of Outback Queensland. The opals from here are unlike opal anywhere else in the world.

Koroit Boulder Opal

Boulder Opal Smooth Nuggets, 14"/16 Pcs. 16-20MM, Unique & Beautiful! Lightening Ridge Opal, Matrix Boulder Opal, Australian Boulder Opal

Koroit Boulder Opal Specimen- I am a rock hound and these colors are really beautiful.


Koroit Opal Nut: Rare Collector Piece from Jenny --- it's weird that opals are bad luck.

Topaz Buying Guide. GIA (021815)

One of November’s birthstones, topaz has the unique ability to show different colors in different crystal directions. Learn about this gem in GIA's topaz buying guide.

Emerald is one of the most coveted of all birthstones and is mostly found in South America and Africa, especially in Columbia and Zambia. May birthstone.

Emerald tear drop cut "The foundations of the city walls were decorated with every kind of precious stone. The first foundation was jasper, the second sapphire, the third agate, the fourth emerald," ~ Revelation

Koroit Opal News . . .: - A Very Nice Skinned Nut

malformalady: Koroit opal — The Koroit opal field is an opal mining area in Paroo Shire in South West Queensland, Australia.The Koroit opal field is known for the very distinctive type of boulder opal that is found in its mines

//Alexandrite has an unusual phenomenon - it changes color!. The finest alexandrite is a bright green but when put in candlelight or any reddish light, the stone changes to a bright red. Alexandrite is said to stimulate pleasure and love. It is also used as a lucky stone. Sources of Alexandrite The two most important sources of alexandrite in the world today are Brazil and Sri Lanka.

Tanzanian alexandrite--changes color depending on what light frequency it is exposed to

Peridot Buying Guide. GIA (080114)

If you’re shopping for August’s birthstone, GIA’s Peridot Buying Guide offers tips and advice on what to look forwhen purchasing a peridot.