UNITED STATES SECURITIES AND EXCHANGE COMMISSION, · Based on the list of processing facilities we have compiled and based on smelter/refiner-specific ... Conflict minerals are defined as cassiterite, columbite-tantalite and wolframite, and their derivatives, which are limited to tin, tantalum and tungsten, as well as ...mik_Ex1_01, · Suppliers must disclose whether their products contain Columbite-Tantalite, Cassiterite, Wolframite, Tin, Tungsten, Tantalum or Gold. Suppliers using conflict minerals are encouraged to source raw materials from certified metal recyclers or certified smelters.Category:Columbite, · Columbite-tantalite from She County (a).jpg 3,968 × 2,976; 2.65 Columbite-tantalite from She County (b) ... Mineral groups and series Conflict minerals Columbite Tantalite Non-topical/index: Uses of Wikidata Infobox Navigation menu Personal tools English ...Tantalum Facts (Atomic Number 73 and Element Symbol Ta), · Sources: Tantalum is found primarily in the mineral columbite-tantalite (Fe, Mn)(Nb, Ta) 2 O 6 or Coltan. Coltan is a conflict resource. Tantalum ores are found in Australia, Zaire, Brazil, Mozambique, Thailand, Portugal, Nigeria, and Canada.FMF, · Looking at it from a mineral species standpoint, my favorite minerals to collect would be tourmaline group, beryl, topaz, feldspar group, columbite-tantalite group, and fluorite. Cheers, Jesse.
Columbite, Columbite-(Fe), Columbite-(Mn), Stibiocolumbite, Stibiotantalite, Tantalite-(Fe), Tantalite-(Mn) A generic name for minerals of the Columbite/Tantalite families which are difficult to distinguish without sophisticated tests.