A karat is a unit of weight used for gemstones, equivalent to 200 milligrams (0.2 grams). Therefore, a karat of opal weighs 200 milligrams, regardless of the type of opal or its specific characteristics. This standard measurement is consistent across various gemstones, making it easier to assess and compare their weights.
it can not be answered by length and karat. you need to weigh it.
The Olympic Australis Opal is believed to be the largest gem opal ever found. The Olympic Australis weighs 17,000 carats (3450 grams) and is 280 mm long (11 inches) by 120 mm, by 115 mm. It was valued at AUD$2,500,000 in 2005.
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.
There are 5 basic types of opal. These types are Peruvian Opal, Fire Opal, Girasol Opal, Common opal and Precious Opal.
It weighs 1,204 pounds but only if it is pure 24 Karat Gold.
Another name for opal is "fire opal."
When a person thinks of gold opal earrings, they might thing of an opal cabochon in a gold setting that has a finding for pierced or unpierced ears. Gold is, of course, the most treasured of precious metals, used not just for jewelry but for currency, electronics, art, glassmaking, medicine and even food. It resists tarnishing and is very easy to bend into shapes, which makes it sought after for jewelry. The best gold to use for jewelry are 18 and 14 karat. A karat is a measure of the gold's purity. Depending on the metal its alloyed with, gold can be white, yellow or rose gold. Rose gold has a coppery reddish hue, and white gold resembles silver, but is less likely to tarnish.OpalsThere are two basic types of opal: precious opal and common opal. Both can be used as gems, but the precious opal is the one prized for its iridescence. The iridescence is the result of the reflection and scattering of light from tiny spheres of silica in the gem. Common opal lacks this sort of iridescence, though it comes in a wide range of colors.Precious opal can come in just about every color of the rainbow, including white, gray, blue, rose, lavender, green, magenta or combinations of these colors. Fire opal can vibrant shades of yellow, orange or red. Water opal is clear, but has a subtle play of colors within. The name opal probably comes from the Sanskrit upala, which means precious stone. Opal has been valued since the days of the Roman Empire.Earring StylesGold opal earrings can be several styles. A stud earring can be a small opal set in a four prong gold setting. In button earrings, the opal would be set in a gold collet. Gold and opal earrings can also be in the drop style, as well as the dangle style, with an opal at the earlobe attached by a gold chain to a dangling opal drop. The opulent chandelier style may have opals interspersed within a gold framework. The backing of the earrings can be clip-on and screwback for non-pierced ears, and lever back, French wire and post for pierced ears.
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 .
India Opal Buloni (Opal) The Preacher (Opal's father) Winn-Dixie (Opal's dog)
A karat is a unit of measure used for the purity of gold, not weight. It represents 1/24th of the whole, so 24-karat gold is considered pure gold. The weight of gold is typically measured in grams or ounces.
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.
black and opal