The Kafubu emerald deposits occur within rocks of the Muva Supergroup which form the youngest part of preKatangan basement immediately southwest of the well known Copperbelt of Zambia. Within the Muva Supergroup are persistent bands of talc—chlorite—amphibole (tremolite/actinolite) magnetite schist, which are intruded by pegmatites.
In the Centre and in the East of Zambia countless large gembearing pegmatites contribute to the mineral wealth of the country producing deep blue aquamarine, beautiful tourmaline of all colours, morganite and many other gem species for decades.
Update: The Law and Legal research in Zambia By Alfred S. Magagula Alfred S. Magagula is a graduate fellow from the University of Swaziland. He holds law and LLB degree from the same university. He has done research with various consultancy firms in Swaziland before.
For Zambian emeralds, it was the specific combination of the circa billion year old highgrade metamorphic rock named the Talc Magnetite Schist (TMS) and the younger circa 500 million year old intruding pegmatite that came together to form these magnificent and incredibly rare gems.
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Zambian emeralds are less porous and less brittle, have more even color, they do not require artificial improvements. They have specific chemical composition – these emeralds contain much more cesium than emeralds from other loions. The largest Zambian emerald – a 60 cm long giant – was found in Kamakanga Old Pit in the 1980s.
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EMERALD GENESIS: Late and postKibaran granite emplacement was characterised by intensive pulses of pegmatite activity rich in minerals containing Boron, Beryllium and Fluorine. These highly volatile phases appear to have been channelled through a well developed network of steeply dipping shear zones and glide surfaces.
Zambia, with a total population of 14,309,466 as of July 2012, is loed in Southern Africa, to the east of Angola and south of the Democratic Republic of the Congo. Zambia covers a total area of 752,618 km2 and has a tropical climate.
A Visit to the Kagem Openpit Emerald Mine in Zambia. Tao Hsu, Andrew Lucas, Vincent Pardieu, Robert Gessner. December 31, 2014
zambian pegmatite minerals crusherasia MAP OF EASTERN ZAMBIA (SHOWING PEGMATITE, Radioactive minerals in pegmatites associated with granitic, Libethenite from the Rokana Mine, Zambia Quartz, [View]
