what is the fracture of a dark blue opal
Blue opal is difficult to purchase in bulk and nearly impossible to find online. However, one could purchase blue opal as beads or other jewelry. One could also purchase it on auctions.
The beauty and uniqueness of opals lies in the fact that they are made up of many colours. Opal is made up of blue, green, orange, yellow, purple and many colours in between. Those with flashes of red are particularly prized.Common opal, often known as "potch" is "undeveloped" opal, milky white in colour, but sometimes with touches of colour. It has little value, if any. This is different from white opal which has a background colour of white, with bright flashes of colour embedded within. Black opal, by contrast, has a dark background colour, which may also be navy blue or deep green.To see some different opals, click on the link below.Technical colour names include:Cacholong - white like porcelainFire Opal - orange to red in colour, semi-transparentGirasol - transparent blue/white with a touch of redHyalite - colourlessLechosos - deep green play of colourMenilite (liver) opal - grey or brownMexican waer opal - colourless or yellowishMilk opal - yellowish, bluish-white, or whitePrase - green colouredBlack opal - unique to Australia
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Cherry opal is primarily found in Mexico and the United States, specifically in locations like Nevada and Oregon. It can also be found in other countries such as Peru, Australia, and Indonesia.
you first must know the color of the Opal (i read this on a website called opal.com)
Opal color in lionhead rabbits is a dilute shade of greenish-blue. It is a rare and unique coloration that gives the rabbit a striking and beautiful appearance.
We need more information about the opal before an approximate value can be made. 76.8 grams is large... is this a solid opal or does it have cantera around it? Value depends on the clarity, color and type of fire... it may be worth thousands of dollars or fifty or less - depends. MexicoGemstones.com
Opal is a stone that is a clearish whitish background, with different colors scattered around on it. There are colors such as red, orange, blue, green, ect. These colors appear more than once on the stone.
Melting opal can cause the gemstone to lose its color iridescence due to the high temperatures involved. The internal structure of opal can also be altered, impacting its overall appearance and value. It is generally not recommended to heat or melt opal.
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There are many places that offer Opal Necklaces, such as Blue Nile, Walmart, Target, The Bradford Exchange, eBay, Amazon, Opalmine, JCPenny, Kmart, and Sears.