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Petrology carried out by CRAE determined that the tin is present as free fine cassiterite, usually 0.
Cassiterite (tin oxide) is the main ore source of tin, a highly
The provinces are rich in cassiterite and coltan, the minerals used to make phones, computers, games consoles and other electronics.
Violence and atrocities continue where armed groups profit from the sale of gold, coltan, wolframite and cassiterite mined by locals under inhumane conditions.
Especially since World War II, the pegmatites of the state of Minas Gerais have yielded some of the world's finest specimens of topaz, chrysoberyl, euclase, elbaite, and beryl (in all of its colored varieties); phosphate-rich pegmatites of the same state have furnished the world's finest specimens of brazilianite, beryllonite, eosphorite, hydroxylherderite, amblygonite and more; complex pegmatites of other kinds have provided cassiterite, xenotime, monazite and several rare-earth species; Brazilian specimens of titanite, phenakite, fluorapatite, kyanite, scheelite, spessartine and bertrandite are among the world's very best.
It was not immediately clear what the plane was carrying to Walikale, but the airstrip is often used to export cassiterite, a tin ore, out of Democratic Republic of Congo's bush.
The crystal structures in all cases were, however, the tetragonal cassiterite structure.
The recent inclusion of coltan and cassiterite in the DRC's EITI reporting is a step in the right direction.
Yet, besides these useful attributes lies the fact that the coltan trade based in eastern DRCongo is one of the various mineral trades--including gold, cassiterite, wolframite and diamonds--whose associated million-dollar illegal trafficking has served to brutally destabilise eastern Congo and fuel the ongoing conflict in which an estimated 5 million deaths have occurred since 1996.
Conflict flared in the Kivu provinces over mining access to coltan--short for columbite-tantalite and used in cell phones and computer chips--and cassiterite, a heavy dark mineral that is the chief source of tin.
Clinton addressed the question of the trade in minerals such as cassiterite and coltan, which are dug up in eastern Congo for use in consumer electronics such as mobile phones and whose sale funds armed groups in the region.