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Words related to cassiterite

a hard heavy dark mineral that is the chief source of tin

References in periodicals archive ?
5kg bag of cassiterite, dug from the ground by a local miner here and tagged by a government representative, made the Punia mine the latest in a growing number of sites indoctrinated in the iTSCi conflict-free mineral traceability and due diligence program.
The mineralisation consists of chalcopyrite, cassiterite, sphalerite, pyrite, and arsenopyrite, and is essentially stratiform, dipping to the northwest at about 30 degrees.
The term "conflict minerals" refers to several highly lucrative and commonly mined metallic ores including coltan, wolframite, and cassiterite, all of which are refined into precious metals (tantalum, tungsten, and tin, respectively) that form essential components of cell phones (Mineral Information Institute, 2010).
Mined largely in the DRC under questionable human rights standards, wolframite, cassiterite, coltan and gold are then processed for the manufacture of electronic components found in cellphones around the world.
The following conflict minerals are defined in the SEC's final rule: columbite-tantalite (coltan), cassiterite, gold, wolframite, and their derivatives (currently limited to tantalum, tin, and tungsten, which are extracted from coltan, cassiterite, and wolframite, respectively), "or any other minerals or their derivatives determined by the Secretary of State to be financing conflict in the Covered Countries" (SEC Final Rule 34-67716, p.
The topics include the design of test devices for carbon dioxide absorbents as energy materials based on pressure sensors and temperature sensors, a neural model of the production process for predicting filtration properties of melt blowing non-wovens, the effect of antimony on the corrosion resistance of steel in acid solution with high chloride concentration, reagents and processes of fine-grained cassiterite flotation in mining engineering, and the effect of pore pressure variation on borehole stability of drilling in sandstone reservoirs.
Records show that during the main production period from 1822 to 1893, metal production from this group of mines was approximately 3,900 tonnes of copper, 5,400 tonnes of lead, 400 tonnes of Cassiterite (tin ore), 37,300 ounces of silver and 5 tonnes of Wolframite (tungsten ore).
source of tantalum and niobium), cassiterite (tin ore), wolframite
Numerous minerals are involved, but this film focuses on cassiterite, an ore of tin.
In Wednesday's resolution the Council also recommended that all countries, but particularly those in the region, publish regular statistics for the import and export of natural resources such as gold, cassiterite, coltan, wolframite, timber and charcoal.
The new film Blood In The Mobile, which gets its first showing in Scotland tonight at the Edinburgh Filmhouse, reveals the origins of minerals such as cassiterite, that are essential to produce some phones and other electrical equipment.
The report also says that Apple is working with the Global e-Sustainability Initiative (GESI) and the Electronic Industry Citizenship Coalition (EICC) to ensure that their suppliers are using conflict-free sources of extractives, namely "The mining of columbite-tantalite, cassiterite, wolframite, and gold which are refined into tantalum (Ta), tin (Sn), tungsten (W), and gold (Au), respectively [that] is believed to fuel political strife in the Democratic Republic of Congo and neighboring regions.
Helmer Poulsen goes to the Democratic Republic of the Congo to see the conditions in the warlord-controled mines that harvest cassiterite and other minerals used to make cell phones.