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How do people extract opal from earth?
Opal is typically extracted from the earth through open-cut mining or underground mining methods. Miners use heavy machinery to remove overburden and dig into the opal-bearing layers, where they extract the opal-bearing rocks. These rocks are then processed to extract the opal gemstones.
Is synthetic opal a mineral?
No. As it is synthetic it is man-made. A mineral must be naturally occurring and have a crystalline structure (among other requirements). Synthetic opal does not meet these criteria.
What is the Texture of an Opal Mineral?
Opal is an amorphous mineral, which means it lacks a true crystal structure. It typically exhibits a smooth, glassy texture. Opal can also display a unique play-of-color caused by the diffraction of light, giving it a vibrant and iridescent appearance.
Is opal a element or a compound?
SiO2 .nH2O
What is the texture of opal?
It depends.... when they have just been dug out of the round they are extremely rough and vary in shapes. Once they have been polished they are very smooth and usually a round shape.
What gemstones is more expensive than Opal?
Fire opal:)
Did opal ever finds her mother?
no
What states in the US are opal found in?
Opal is most commonly found in Idaho.
What is the most valueable opal?
the best opal can be more valuable than the best rarest black diamond
How much does Australian opal cost by the gram?
It varies hugely with the type and quality of opal. In general the black opal (lights against a dark background) is more expensive than milky opal (lights against a creamy background). But opals are very individual, and prices depend on the appeal of a particular stone as presented, or a cutter's eye for its potential.
Where are opals made?
Australian Opal are dug and cut both on the opal fields and in the city's. they are found in New South Wales (NSW) - The Home of Black Opal New South Wales produces most of the Opal of Australia. Lightning Ridge opal is the darkest and most valuable form of opal. White Cliffs, produces white or crystal opal in the form of 'seam White Cliffs is also noted for the production of 'opal pineapples' Queensland produces boulder opal, these occur in deposits in weathered sedimentary Cretaceous rocks in the west of the state Quilpie, Queensland the largest producer of boulder opal in the world Winton, Queensland Opalton, Queensland Yowah, Queensland home of the opal refered to as Yowah Nut, South Australia - The White Opal Fields South Australia has 4 working opal fields, Andamooka, Coober Pedy, Lambina and Mintabie. South Australia produces the largest amount of opal and this is known as milky opal. Coober Pedy produces most the world's white opal. Andamooka, South Australia Mintabie, South Australia Lambina, South Australia
What town and country is know as the opal capital of the world?
The unmodified opal is a common mineral located worldwide. The most important deposit locations for opal minerals are: Australia, and Mexico. However, Australia remains the richest in said mineral, having more than 3/4th of the world's common opal.
If my date is wearing an opal bracelet and says it is her zodiac stone then what is her sign?
You're date is most likely a scorpio. Scorpio's main gemstone is Topaz, but others include Opal, Beryl, Amethyst, Aquamarine, and Tourmaline. Opal is most common of them.
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.
How many types of opals are there?
There are 5 basic types of opal. These types are Peruvian Opal, Fire Opal, Girasol Opal, Common opal and Precious Opal.
What is contraluz opal?
Contraluz is opal where you see the play of colors by illuminating the back of the stone with light as compared to most opal where the light falls on the front of the stone to see the play of fire, The contaluz opal when illuminated from behind, the stones develop a brilliant colour play.
Opie was a nickname for what first name?
Most likely Opal.
