What are precious gemstones

What are the most precious gemstones? The World’s Most Valuable (Prized) Gemstones Tanzanite . Discovered in 1967, Tanzanite is found only in northern Tanzania in the Mirerani Hills (in just a 4.3 x 1.2 mile mining area). Black Opal . Opals in general are quite valuable, black opal topping the list in terms of desire […]

Who starred in precious

What happened to the star of Precious? After trying for many years to lose weight naturally, the Precious star turned to laparoscopic bariatric surgery. The Empire actress has been showing off her new body on the red carpet, in the latest issue of People magazine and on her Instagram feed. Bariatric surgeon Dr. Who is […]

Precious metal clay projects

Is Precious Metal Clay real silver? Precious Metal Clay ( PMC ) As a solid -phase sintered product of a precious metal powder used to form a precious metal article, the material consists of microscopic particles of pure silver or fine gold and a water-soluble, non-toxic, organic binder that burns off during firing. How do […]

Refining precious metal

What is the precious metal in the world? Palladium is now the most valuable of the four major precious metals, with an acute shortage driving prices to a record. A key component in pollution-control devices for cars and trucks, the metal’s price doubled in little more than a year, making it more expensive than gold […]

Precious metal stamps

What do stamps mean on jewelry? The gold stamps inside the jewelry explain the fineness level of the gold . 750 means 18k, 585 means 14k and 375 means 9k. There may be additional stamps to indicate the material’s origin like it may be gold plated, or there may be hallmarks from certain institutions that […]