Examination of 23 tanzanites coated by an apparently new technique revealed that the smaller stones (4–5 mm) could be identified as coated based on a combination of the unusually intense color and ...
Along with the discovery of tsavorite, Bridges became enamoured with a purplish-blue stone he encountered at local markets. In an interview for Diamond World, Campbell's wife, Judith Bridges, ...
Dawson bought a tanzanite gemstone for $9,500 ... compensating the client at fair market value. Despite our efforts, the situation has escalated publicly and legally. While we respect our clients ...
Check the price of copper with Money Metals Exchange's interactive live and historical chart. The chart below allows you to check copper spot prices dating back 20 years up to the current date. Copper ...
Subjects covered include the language of colored stones; color’s powerful role in gemstone value and the unique characteristics of popular colored stones; and how color, clarity, cut, and carat weight ...
Black Stone Minerals, L.P., together with its subsidiaries, owns and manages oil and natural gas mineral interests. It owns mineral interests in approximately 16.8 million gross acres ...