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Mining Industry Of Cameroon

Mining Industry Of Cameroon
Cameroon Overview

Cameroon has a total area of approximately 475 thousand square kilometers, a coastline of some 400 kilometers, and a population approaching 18 million people.

Mining History

As of April 2008, Cameroon has no industrial mining history. Cameroon undeveloped mineral resources include bauxite, cobalt, gold from lode deposits, granite, iron ore, nepheline syenite, nickel, and rutile. Strong metal and industrial mineral prices since 2003 have encouraged companies to develop mines. The Nkamouna enriched cobalt-nickel-manganese-iron laterite deposits and several other nickeliferous laterite deposits in southeast Cameroon were first discovered and investigated by the United Nations Development Programme (UNDP) during 1981-1986, in a cooperative project with the Cameroon Ministry of Mines, Water and Energy to evaluate mineral potential in southeastern Cameroon. Due to the remote location and the low nickel prices at the time, the discovery did not draw much attention. No further exploration took place on the property until geologist William Buckovic became aware of the nickel discovery in 1988.

The southeast region and nearby regions in Gabon, Republic of the Congo, and Central African Republic have few producing mineral deposits and few with near-term production potential. Most of this region is underlain by Proterozoic granite-gneiss-schist terrains. Within the region, ultramafic rocks, the original source of the cobalt and nickel, are confined to the project area. There has been no previous production of minerals from the project area.[citation needed]

Alluvial gold is artisanally exploited from stream gravels in parts of Cameroon, Gabon, Congo, and Central African Republic. However, the U.S. Geological Survey 2002 estimate for total gold production from all four countries combined is less than 1,600 kilograms, or less than 50,000 ounces per year. The portion of this yield from within a 300-km radius of the Geovic Project is likely on the order of 20,000 ounces per year, a relatively insignificant amount by international comparisons. In the southwest part of the Central African Republic, alluvial gold is accompanied by small quantities of alluvial diamonds in streams which drain Cretaceous sandstone and conglomerates exposed further east. The Cretaceous formations do not extend into Cameroon.

Geology of Cameroon

Cameroon Mining Laws & Regulations

Institutions

Economics

Commodities

Bauxite (Aluminum-bearing ore)

As of April 2008, bauxite is not mined in Cameroon; it is only refined. The raw material is shipped from around the world to a smelter in Eda where a supply of hydro-electric power is available for processing. The refined metal is exported globally.

Limestone

Limestone production in 2004 was 260,000 metric tons.

Cobalt

A Mining Permit was decreed in favor of GeoCam in 2003 that covers the entire cobalt mineral province in southeastern Cameroon, perhaps the largest primary cobalt resource in the world.

Diamonds

Gold

Gold yielded an estimated 1500 kg in 2004 and was produced by small-scale artisanal miners, mostly in the eastern part of the country.

Iron Ore

Nickel

Uranium

Current projects

Cobalt, Nickel & Manganese Project

References and footnotes

^ CIA World Factbook.

^ UNDP Project CMR/81/005).

^ U.S. Geological Survey, 2002.

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Mining in Africa

Sovereign

states

Algeria Angola Benin Botswana Burkina Faso Burundi Cameroon Cape Verde Central African Republic Chad Comoros Democratic Republic of the Congo Republic of the Congo Cte d’Ivoire (Ivory Coast) Djibouti Egypt1 Equatorial Guinea Eritrea Ethiopia Gabon The Gambia Ghana Guinea Guinea-Bissau Kenya Lesotho Liberia Libya Madagascar Malawi Mali Mauritania Mauritius Morocco Mozambique Namibia Niger Nigeria Rwanda So Tom and Prncipe Senegal Seychelles Sierra Leone Somalia South Africa Sudan Swaziland Tanzania Togo Tunisia Uganda Zambia Zimbabwe

States with limited

recognition

Sahrawi Arab Democratic Republic Somaliland

Dependencies,

autonomies,

other territories

Canary Islands/ Ceuta/ Melilla/ Plazas de soberana (Spain) Madeira (Portugal) Mayotte/ Runion (France) Puntland (Somalia) Saint Helena, Ascension and Tristan da Cunha (United Kingdom) Southern Sudan (Sudan) Zanzibar (Tanzania)

1 Transcontinental country.

Categories: Economy of Cameroon | Mining by countryHidden categories: All articles with unsourced statements | Articles with unsourced statements from April 2008

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Mining For Turquoise In Nevada

Mining For Turquoise In Nevada

With its discovery over four thousand years ago, turquoise is one of the oldest gemstones known to man. Ancient Egyptians are credited with its discovery in the Sinai peninsula. They used this beautiful stone to create jewelry and to adorn their homes, palaces and temples. In fact, turquoise artifacts were often buried along with people after their death because Egyptians believed that turquoise was connected to the Gods, and would help the person reach heaven in the after life. So great was their reverence for turquoise that the rulers of ancient Egypt declared that only royalty, high priests, and other persons of high standing in Egyptian society could own turquoise. It was also prohibitively expensive – sometimes costing even more than gold – making it harder for the common man in the street to buy or own turquoise objects. The Egyptians were not the only civilization that worshipped turquoise and believed in its spiritual and metaphysical powers. The Aztecs, Incas and most a Native American tribes also held this stone in great esteem. Native Americans believed that turquoise was a protective stone and inspired bravery. So warriors would adorn their shields and bows with turquoise inlays before leaving for battle. To this day, Native Americans incorporate turquoise in their religious ceremonies and rituals.

As time passed, the spiritual significance of turquoise was lost and people began to be attracted to this gemstone based purely on its physical attributes. The characteristic blue-green stone with dark spider veins of the stone have made it the most valuable opaque gemstone in the world of fashion jewelry today. The perfection of the stabilization techniques whereby moderate quality stones can be used in jewelry applications has further enhanced the popularity of turquoise. The negative aspect of this rise in popularity of turquoise for fine and costume jewelry is that it has stressed the known sources of turquoise around the world. In fact, many turquoise mines in the world have been overexploited over the past few decades, and mining is no longer economically feasible at these locations. Several turquoise mines that are now defunct can be found throughout the American Southwest, and indeed across other arid and semi arid regions of the world.

The United States is the largest producer of turquoise in the world today, and Nevada is claims the top ranking within the US, closely followed by United States. It is no coincidence that turquoise is found in Nevada. Turquoise is a hydrated complex of copper and aluminum phosphates, infused with molten silica under high temperature and pressure. These minerals are found in great abundance in the State, leading to conditions that were conducive to turquoise formation some forty million years ago.

Turquoise mines are usually found in small clusters and each cluster is typically called a mining district. Nevada has several such mining districts, and none of them is more famous for turquoise production than the Royston area. This mining district boasts of several turquoise mines, each of which produces turquoise of high quality and very unique. One of the newer sources of turquoise here is the Ajax mine. Turquoise specimens from this mine are usually light blue in color with dark blue veins, or stones that have a dark green background with light blue vein patterns. There are also several mines in this district that have ceased commercial production of turquoise, but continue to host small mining operations and individual rockhounds searching for that one unique specimen of this beautiful gemstone. The Blue Gem mine near Battle Mountain and the Blue Moon mine in Esmeralda County are good examples of mines that are now closed to commercial production. Mining at Blue Gem started in the 1930s and the mine produced gem-quality specimens in brilliant shades of blue and green. Turquoise from the Blue Moon mine was typically bright, sky-blue in color with dark (almost black) spider veining. Specimens from the Blue Moon mine today are rare and are considered to be collectors’ item. Blue Moon was closed to commercial mining in the 1970s.

There are also a series of turquoise mines in Nevada that are located on ancient lakebeds. Candelaria, Carico Lake, and the Damali mines are the best known examples of turquoise sources that fall under this category. The Carico Lake and Damali mines are quite close to each other. Yet, the turquoise found at these two locations is very different. Carico Lake mine produces a clear, iridescent, spring-green color turquoise. At Damali, the same mineral content produces turquoise that is yellow and khaki in color, and quite unique!

The author is a geo-professional in Arizona and writes extensively on gemstone jewelry, and in particular on turquoise pendants, bracelets, earrings, pins, and pearls necklaces.

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