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The Central African Republic did not produce mineral fuels in 2006 and depended upon imports for its energy requirements. United Reef Ltd. of Canada obtained the rights to a petroleum exploration permit in the country through a "farm-in agreement" with Denver-based RSM Production Corp. in 2004. It was unable to continue with its exploration ...
Quartz is, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. [10] Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation ...
First found in the United States, unakite has a worldwide distribution, having also been reported in South Africa, Sierra Leone, Brazil, China, India and Australia. Some material labeled unakite lacks the feldspar and is more properly called epidosite , and is also used as beads and cabochons .
The room-temperature form of quartz, α-quartz, undergoes a reversible change in crystal structure at 573 °C to form β-quartz.This phenomenon is called an inversion, and for the α to β quartz inversion is accompanied by a linear expansion of 0.45%.
Alumina Partners of Jamaica, also known as Alpart, is a company that owns and operates a bauxite refinery in Nain, Jamaica. [1] Alpart was founded in 1969 as a joint venture by Kaiser Aluminum, Reynolds Aluminum, and Anaconda. [2] Alpart exports 1.65 million tonnes of alumina overseas per year, and earned gross revenues of US$1.3 billion in ...
Anglo American Platinum Limited (JSE: AMS) is the world's largest primary producer of platinum, accounting for about 38% of the world's annual supply. Based in South Africa , most of the group's operations lie to the northwest and northeast of Johannesburg .
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The Stormberg Group is composed of three main geological formations that are found in numerous localities across Lesotho and in the Free State, KwaZulu-Natal, and Eastern Cape provinces in South Africa. These formations are listed below (from oldest to youngest): Molteno Formation; Elliot Formation; Clarens Formation