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What opal mine in nevadas virgin valley produces the most stable opal?
There are nearly 200 mining claims and 5 patented (private) mines in Virgin Valley. Several are open to public digging (Royal Peacock, Bonanza, and Rainbow Ridge). Of these three public mines, the Rainbow Ridge produces the most stable opal, according to Eckert (1997) "The World of Opals." The stability of the opal depends on its primary formation and to a lesser degree the moisture content of the enclosing deposit. A dry bank will produce more stable opal than a wet one (generally). A large amount of opal from the Royal Peacock is actually stable. Most opal in Virgin Valley cracks (known as crazing) shortly after mining. Keeping it moist and out of direct light, and later drying methods, will 65% of the time produce dry stable opal for cutting.
Are there different kinds of opal?
The types of Opal that i am familiar with are White Opal, Fire Opal, Boulder Opal, Black Opal, Crystal Opal, Light Opal, Doublet Opal, Triplet Opal, Common Opal, Synthetic Opal, and Immitation Opal.
What is the difference between an Australian opal and an Ethiopian opal?
An Ethiopian opal is an opal-CT, whereas an Australian opal is an opal-A. The Ethiopian opal is made up of leptospheres, instead of small amorphous silica spheres like the Australian opal.
What is boulder opal?
Boulder opal is distinct from black opal in the following ways: * Boulder opal is usually mined in open-cut operations while black opal is mined in shafts. * Boulder opal is found in ironstone boulders, while black opal is found in seams.
What is the birthstone for October?
October's birthstone is the opal. The opal is thought to have the power to predict illness. This is because the opal responds to heat.
How do people get the opal gem?
They have to dig for it There are several different mining sites in Australia where different types of opal is found.
What is the most expensive opal ever recorded?
Coober Pedy, in the South Australian outback, is the world's largest opal mining area.
What kind of mining is done in the state of Texas?
surface mining
What is mining used for in Texas?
what dose Texas mine
What is the Gem emblem of South Australia?
The gem emblem of South Australia is the opal. The opal was adopted as the state gem on 15 August 1985. Eighty percent of the world's opals come from just three opal mining areas in South Australia.
Does Opal Telecom provide service in Texas?
Unfortunately, it doesn't. I know that it provides service in the United Kingdom using TalkTalk (Car Phone). They do have a company called One Telecom that is in Texas, but no Opal Telecom.
When was Cape Nome Mining District Discovery Sites created?
Cape Nome Mining District Discovery Sites was created in 1898.
What Australian state is Coober Pedy?
Coober Pedy is an opal mining town in the outback of the state of South Australia.
What is Texas Utilities Mining's revenue?
Texas Utilities Mining Co., a subsidiary of TXU Corp., which reported 2003 sales of $11 billion.
What opal mine in nevadas virgin valley produces the most stable opal?
There are nearly 200 mining claims and 5 patented (private) mines in Virgin Valley. Several are open to public digging (Royal Peacock, Bonanza, and Rainbow Ridge). Of these three public mines, the Rainbow Ridge produces the most stable opal, according to Eckert (1997) "The World of Opals." The stability of the opal depends on its primary formation and to a lesser degree the moisture content of the enclosing deposit. A dry bank will produce more stable opal than a wet one (generally). A large amount of opal from the Royal Peacock is actually stable. Most opal in Virgin Valley cracks (known as crazing) shortly after mining. Keeping it moist and out of direct light, and later drying methods, will 65% of the time produce dry stable opal for cutting.
What mining tools are used on the mine sites?
pickax
Where can one find Australian Opal mines?
There are many Opal mining towns in Australia. Well known towns include Coober Pedy, White Clifs and Lightning Ridge. They are all roughly in the south eastern part of Australia.
