Turquoise, lapis lazuli, jade, and amazonite are some of the most commonly impregnated gemstones. Oiling uses a colorless oil, resin, wax or other substance, except glass or plastic, to a filling of surface reaching cracks or fissures in a gem to diminish the visibly of fractures and improve...
Kyanite gemstonesare found in various locations around the world, including countries such as Brazil, Nepal, Switzerland, Australia, Myanmar, Kenya, Zimbabwe, and the United States. These gemstones are typically discovered in metamorphic rocks such as schist, gneiss, and pegmatites. Each region may ...
Found in granites, pegmatites, and schists, as well as alluvial deposits, the finest emeralds are from Colombia. Other sources are Austria, India, Australia, Brazil, South Africa, Egypt, the USA, Norway, Pakistan and Zimbabwe. Most emeralds used in historical jewellery would have been from Cle...
It crystallizes in the orthorhombic system. It is most commonly found in shades of green and yellow, but there are brown, red, and (rarely) blue specimens. 20 of 70 Chrysocolla Gemstone This is a polished nugget of the mineral chrysocolla. Chrysocolla is a hydrated copper silicate. ...
One of the first gemstones to be mined, turquoise has long been prized for its intense color, which varies from sky-blue to green, depending on the quantities of iron and copper within it. Turquoise is commonly found in microcrystalline, massive form, usually as encrustations, in veins, or...
Commonly, specimens of onyx contain bands of black and/or white. 12-Opal Color: Black, White, Gray, Yellow, Red, Orange and Colorless Mohs hardness scale: 5 – 6.5 Locality: Found mainly in Australia, Brazil, Mali, Japan, Russia, USA, Mexico Opal is a very popular gemstone, mainly ...
the desired star ruby. The rutile lends ruby a silky luster. Inclusions are common for star ruby and are not always indicative of poor quality. Inclusions commonly found in ruby are used to help distinguish between natural and synthetic ruby. Inclusions may also be used to help distinguish ...
It can commonly be found in shades of green, blue, aqua, or teal, but impurities can make it dark brown to almost black in color. You may find Chrysacolla anywhere you find copper, but large deposits exist in England, Israel, Mexico, the Czech Republic, Australia, the Congo, Chile, ...
More commonly found massive. Cleavage is perfect in 3 directions forming rhombohedrons. Fracture is uneven. Hardness is 4.5 - 5. Specific Gravity is 3.7 (somewhat heavy for a translucent mineral). Streak is yellowish green. Other Characteristics: Effervesces slightly in hydrochloric acid....
used also as jewelry. People associate gemstone with journeys usually. Businessmen, tradesmen, travelling persons carry it a lot. This stone is highly popular in east Africa & Australia. Some samples more than ten feet long red garnet is found there. The garnet which is used for astrological ...