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In the United States they may be called "pepperoncini"; [4] they are quite distinct from Italian peperoncini, which are hot Italian chili peppers. Friggitello is mild with a slight heat and a hint of bitterness, and is sometimes pickled and sold in jars. In Italy friggitello is most associated with the region of Tuscany. The Greek variety ...
This deposit differs markedly by having a high content of diamonds but low quality of most stones. Research at Argyle diamond have shown that most stones are of E-type; they originate from eclogite source rocks and were formed under high temperature ~1,400 °C (2,600 °F). The Argyle diamond mine is the main source of rare pink diamonds.
Logo used since 2010. Diamonique is the brand name used by television shopping network QVC for their cubic zirconia simulated colorless diamond, simulated colored diamond, and simulated colored gemstone jewelry (cubic zirconia is a common type of gemstone substitute). [1]
First found in the United States, unakite has a worldwide distribution, having also been reported in South Africa, Sierra Leone, Brazil, China, India and Australia. Some material labeled unakite lacks the feldspar and is more properly called epidosite , and is also used as beads and cabochons .
Inclusions can be found in these crystals that provide clues to the origins of the Herkimer diamonds. Found within the inclusions are solids, liquids (salt water or petroleum), gases (most often carbon dioxide), two- and three-phase inclusions, and negative (uniaxial) crystals. A black hydrocarbon is the most common solid inclusion.
Goldstone Goldstone glass under magnification. Goldstone is a type of glittering glass made in a low-oxygen reducing atmosphere.The finished product can take a smooth polish and be carved into beads, figurines, or other artifacts suitable for semiprecious stone, and in fact goldstone is often mistaken for or misrepresented as a natural material.
A diamond with facets cut only a few degrees out of alignment can result in a poorly performing stone. For a round brilliant cut, there is a balance between "brilliance" and "fire". When a diamond is cut for too much "fire", it looks like a cubic zirconia, which gives off much more "fire" than real diamond. A well-executed round brilliant cut ...
Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US