Overview of the Conflict Minerals Issue Armed groups controlling mines smuggle minerals out of the DRC and the proceeds are used to further finance conflict and perpetuate criminal behavior; hence, cassiterite, coltan, wolframite and gold are considered conflict materials.

What mineral is peacock ore?

Bornite
Bornite, also known as peacock ore, is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the orthorhombic system (pseudo-cubic).

What metal comes from a mineral called cassiterite?

cassiterite, also called tinstone, heavy, metallic, hard tin dioxide (SnO2) that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present.

What is Galena mineral?

galena, also called lead glance, a gray lead sulfide (PbS), the chief ore mineral of lead. Nodules of anglesite and cerussite with a banded structure and a galena core are common. In many cases, galena contains silver and so is often mined as a source of silver as well as lead.

How is cassiterite mined?

The best sources of primary cassiterite are found in the tin mines of Bolivia, where it is found in hydrothermal veins. Hydraulic mining methods are used to concentrate mined ore, a process which relies on the high specific gravity of the SnO2 ore, of about 7.0.

What are 3TG materials?

These so-called ‘conflict minerals’ such as tin, tungsten, tantalum and gold, also referred to as 3TG, can be used in everyday products such as mobile phones and cars or in jewellery. It is difficult for consumers to know if a product they have bought is funding violence, human rights abuses or other crimes overseas.

What is peacock ore made from?

Part of Hall of Planet Earth. This massive ore is composed of the copper-rich sulfide minerals covellite (purple and blue) and bornite (blue-black). Flowing, copper-rich water transformed a copper-poor rock into this unusually copper-rich ore.

Is Peacock quartz natural?

Natural Peacock Ore Crystal Bulk Wholesale Mineral Specimen It is a common ore of copper and is easily recognized because it tarnishes to iridescent shades of blue, purple, green and yellow. Bornite is the name of the natural, untreated stone, while Peacock Ore usually describes its heat-enhanced state.

What is cassiterite mineral?

Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite was the chief tin ore throughout ancient history and remains the most important source of tin today.

What is the English meaning of galena?

Definition of galena : a bluish-gray cubic mineral with metallic luster consisting of lead sulfide and constituting the principal ore of lead.

Is galena a rock forming mineral?

Galena is a lead sulfide mineral with a chemical composition of PbS. It is the world’s primary ore of lead and is mined from a large number of deposits in many countries. It is found in igneous and metamorphic rocks in medium- to low-temperature hydrothermal veins. Galena is very easy to identify.

What type of ore is cassiterite?

Cassiterite, also called tinstone, heavy, metallic, hard tin dioxide (SnO 2) that is the major ore of tin. It is colourless when pure, but brown or black when iron impurities are present. Commercially important quantities occur in placer deposits, but cassiterite also occurs in granite and pegmatites.

What is cassiterite (SnO2)?

Cassiterite is a tin oxide mineral with a chemical composition of SnO2. It is the most important source of tin, and most of the world’s supply of tin is obtained by mining cassiterite.

How is tin obtained from cassiterite?

The metal is obtained from cassiterite by reduction (removal of the oxygen) with coal or coke in smelting furnaces. No high-grade deposits are known. The major sources are alluvial deposits, averaging about 0.01 percent tin.

Where is cassiterite found in the Congo?

The best sources of primary cassiterite are found in the tin mines of Bolivia, where it is found in hydrothermal veins. Rwanda has a nascent cassiterite mining industry. Fighting over cassiterite deposits (particularly in Walikale) is a major cause of the conflict waged in eastern parts of the Democratic Republic of the Congo.