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Opals can vary in transparency; they are often opaque or translucent. While some opals exhibit a clear, glass-like quality, most are characterized by a milky or cloudy appearance. The play of color seen in opals is more prominent in those that are translucent rather than fully transparent.
What else can I help you with?
Is opal a crystal?
Opal is not classified as a true crystal; instead, it is a mineraloid. Unlike crystals, which have a defined and ordered atomic structure, opal has a more irregular arrangement of silica spheres. This unique structure contributes to its characteristic play-of-color, making opal a popular gemstone despite its non-crystalline nature.
Is opal quartz?
No, opal is not quartz. While both are considered silicate minerals, opal is a mineraloid that lacks a crystalline structure, whereas quartz is a crystalline mineral with a defined chemical composition of silicon dioxide (SiO2). Opal is primarily composed of hydrated silica and can form in various colors and patterns, making it distinct from quartz.
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.
What is the specific gravity of the opal?
The specific gravity of opal typically ranges from about 1.98 to 2.20, depending on its water content and composition. This variation is due to the presence of silica and water within the opal structure. Opal's unique properties, including its play-of-color, can also influence its specific gravity slightly. Overall, it is generally lower than that of many other gemstones.
Is opal valuable?
Ther is no set answer to this question. Each opal is unique and has its own value. From colorless opal to the most prized fire opal it depends on the size and color. A good place to get the idea of the value of opal is to go to ebay and type in opals. You will see prices from a few dollars to over 50,000 dollars.
What transparency does an Opal have?
Opal is known for its play-of-color, which is a unique iridescence that displays a rainbow-like spectrum. This effect is caused by the diffraction of light as it passes through the tiny spheres or layers of silica within the stone. Opal's transparency can range from opaque to translucent, with the most prized opals being the ones that exhibit a high level of play-of-color against a transparent or translucent body.
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 colors can opal be?
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
What is another name for opal?
Another name for opal is "fire opal."
What is the fracture of opal?
The fracture of an opal can be hard or smooth , An opal can have as many fractures as any other mineral can . Sometimes opal can be smooth , sometimes they can be hard . The fracture of an opal is hard and smooth .
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.
Who are the main character in because of winn dixie?
India Opal Buloni (Opal) The Preacher (Opal's father) Winn-Dixie (Opal's dog)
What are the ingredience in black opal?
black and opal
Does opal scratch easily?
depens on the opal
Is opal common?
Depends on what kind of opal
When was The Opal created?
The Opal was created in 1851.
