Opal Jewelry - What is a Boulder Opal?

Back again. Fire Opal Earring in Festival Black Friday Sale & Cyber Monday 2011. There are many products that often offer lower prices for the New Year. Our web site. Fire Opal Earring Has prepared a special promotion. For many products. Fire Opal Earring for Americans in particular.

Opal jewelry is some of the most sought after gemstone jewelry in the world, being fifth after diamonds, sapphires, rubies and emeralds. This is because opals are some of the most gorgeous gemstones available. And whilst most population have probably heard of black, white and fire opals, boulder opals are probably less well known. So why are they becoming so popular?

	Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) Product Brand : uGems Unset Gemstones Model : gem02098	List Price : $285.00 Our Price : $28.47 You Save : 90% Check New Price Now » See All Similar Products »

Black Friday sale 2011 Hot Deals & Cyber Monday sales. Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) lowest prices of the year !!! .

================================================================== Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) Overviews This is a of Australian Opal A grade (Commercial); opal light fire colors gemstone; About 5mm x 7mm oval, over 1.5mm thick; ~0.40ct ; 1 specified buys 2 opals, 3 buys 6 opals, etc. See also our single AA grade. Australian Fire Opal A Grade (Comm'l) Unset Loose Gemstone 5mm x 7mm (Qty=2) Features Austrlian Opal unset gemstone A grade (Commercial) ~0.40ct 5 x 7 x 2mm Natural Genuine Opal , fire colors as shown Flat solid oval opal, not a doublet, not a triplet Suitable for fine jewelry Available Stores uGems $28.47 (New) Usually ships in 24 hours Check New Price Now

The body colors of these gemstones are derived from the host rock in which they formed and are categorised as black, gray, white, fire, crystal or jelly. Despite this, opals categorically exhibit a wide collection of colors, including pink, fiery orange, tropical blue and others. However, they are most prized for their internal play of color and fiery opalescence. In a good gemstone, the ensue is like the rainbow display on the exterior of a soap bubble.

Fire Opal Earring

Opals have a unique corporal structure. They are comprised of silicon dioxide, which is also the major component of sand. However, in opal, the silicon dioxide forms minute spheres which composition into a pyramid shaped grid. And tiny droplets of water come to be trapped within this grid as the opal forms. The pay of color seen within an opal comes from fractures and faults within this pyramid structure. And whilst this is the same for all opals, not all opals are the same.

Opal Jewelry - What is a Boulder Opal?

So what exactly is a boulder opal?

Like 95% of opals used in jewelry worldwide, boulder opals are found in Australia. However, rather than being mined in the conventional way, these specific opals are found thinly spread over a thorough region of Australian Ironstone, also known as boulder country. In the natural state, the gemstone forms to fill in the cracks and crevices of the Ironstone boulders.

Unlike black, fire, white and grey opals which are effortlessly cut from their host rock, opals in ironstone boulders are so closely connected with it, and sometimes for such thin tracks as they fill in the crack in the rocks that they cannot categorically be cut from their host rock. This was initially a stumbling block which prevented these gorgeous gems from taking their rightful place in opal jewelry.

However, these days, the gemstone is always cut from the boulder in such as way as to comprise some of the brown host Ironstone rock, which makes for very gorgeous and very unusual pieces, exquisite for fine jewelry! Today these opals are very beloved and jewelry containing it is in high demand. Because the opal veins often form in a freeform way, the resultant boulder opals are often in an irregular baroque shape, exquisite for earrings or pendants.

Opal Jewelry - What is a Boulder Opal? No URL

Fire Opal Earring

See Also : We have selected quality products for you here Judith Ripka Enhancers Small Gold Heart Necklace Steve Madden Glitter Heels