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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.

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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 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

Marsdon Magna Marble (Excessively rare) Age: Jurassic, Lower Lias, Obtusum Zone Size of overall piece 70mm x 43mm x 20mm (http://www.fossilsdirect.co.uk/gallery_details.cfm?prodref=AMM2346)

Marsdon Magna Marble -- Highly Polished, Embedded With UK Fossils Including British Ammonites -- Jurassic Period -- Approximately 200 Million Years Old -- Via Fossils Direct

black opal

Opals always remind me of my gma. she loved opals, and especially fire opals.

Picasso, a 76.60 ct opal - - cabochon polished stone from the Koroit opal fields, Queensland, Australia

Picasso, a ct opal - - cabochon polished stone from the Koroit opal fields, Queensland, Australia

Fordite or Detroit Agate - if this means what I think it means, it is the packed layers of paint off the wall of a car-painting facility. Siince the paint is enamel and baked on, it cuts and polishes up nicely.

Detroit agate/ aka Fordite is old car paint, hardened, cut & polished; formed from the build up of layers of enamel paint slag on skids on which cars were hand-painted, which have been baked numerous times.

Australian Black Opal—"The Stardust Opal". T-Bones Mine, Corcoran, New South Wales, Australia

World-Class Gem-Quality Australian Black Opal—"The Stardust Opal". T-Bones Mine, Corcoran, New South Wales, Australia My favorite stone

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.

cabochon of Mohave purple turquoise. My cousin purchased a block of this vividly colored material from the nice folks who mine Kingman turquoise in Arizona. It is composed of small chunks of natural blue turquoise, to which they added red dye and a brassy-bronze metallic. From there, I'm told the proprietary process is very much the same as with other stabilized turquoise, using a combination of heat and compression, and this is the end result. Beautifully rich coloration, with plenty of…

cabochon of Mohave purple turquoise. It is composed of small chunks of natural blue turquoise, to which they added red dye and a brassy-bronze metallic. Beautifully rich coloration, with plenty of contras

Black opal

Black opal is the most coveted of all opal varities. The "black" in black opal means the gem has a very dark body tone. A black opal can be crystal or opaque. The rarest colour is red, next is green and orange with blue as the most common colour.

Red beryl (aka bixbite, “red emerald,” or “scarlet emerald”) was first described in 1904, and while it is closely related on a chemical level to both emerald and aquamarine, it is considerably rarer than both. (The mineral’s red color is due to the presence of Mn3+ ions.)    The mineral’s known distribution is limited to parts of Utah and New Mexico, and has proven exceptionally difficult to mine in an economically feasible fashion. As a result, some published estimates say rubies of similar…

Red beryl, the rarest gemstone on earth (worth 1000 times more than gold by weight). The "Crown of Fire" - a ct fancy cut red beryl gemstone Photo by Robert Weldon

Rare opal

Rare Asteria Starburst Pattern in this Lightning Ridge opal---- This would be amazing to have!

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