Black Hills gold jewelry elsewhere. Pure 24 Karat gold bars, and stocks of pure silver and copper are the basic materials. These metals are not required to be mined in the Black Hills. Pure gold and other precious metal stock can be acquired from anywhere in the world. The finished jewelry known as Black Hills Gold must be "produced" in the Black Hills of South Dakota. The different colors of gold used for leaves and other details are made when the pure 24 Karat yellow gold is alloyed with copper to achieve the traditional 14 karat pink (or red) gold, and the gold is
AMS-Flight Carat Certification was achieved in 2003, by which time marketing had been passed to AMS. Six production aircraft had been built by the end of 2003 and thirty one by September 2009. The majority of these were flying in the United States, the rest mostly in Western Europe. AMS-Flight Carat The AMS-Flight Carat A is a single-seat, high performance motorglider. The sailplane was originally designed and built by Technoflug in Germany and is now manufactured by AMS-Flight in Slovenia. The Carat was designed by Technoflug around the wings and horizontal tail of the Schempp-Hirth Discus sailplane, marrying these to a new