 | | Journal (issue) | | quite different from the commoner blue beryl, aquamarine, in that their colour has a different source...range of emeralds and green beryls from Central Nigeria. Detailed work on inclusions, compositions of hosts...deposits are exploited, e.g. in Australia, Thailand, Nigeria and China (Coenraads, 1992a; Guo et al., 1992)...on sapphire from other basaltic origins (e.g. Nigeria and Australia). She described as significant morphological...Harding, R.R., 1990. Gemstone prospects in Central Nigeria. Journal of Gemmology, 22, 4,195-202 Karr, c., |  | | Journal (issue) | | jadeite, (3) 7.81 ct violet jadeite, (4) 27.23 ct aquamarine, (5) 1.28 ct blue spinel, (6) 1.17 ct benitoite...and Vietnam), Africa (Tanzania, Kenya, Zimbabwe, Nigeria, and Namibia, as well as Madagascar), South America...from southern Tanzania; spessartine garnet from Nigeria and Namibia; exceptional peridot from Pakistan;...Pakistan; and pink to red tourmalines from Nigeria and Brazil. Diamond was mined in northern Canada for the first...typically report gem- Figure 3. Saturated-color aquamarine comes from relatively few deposits, and Africa |  | | Journal (issue) | | granite pin nacle on the highest point of the plateau overlooking the majority of the Kingsgate pipes...16, July-August, 1985 Geary Murdoch in Idaho Aquamarine, and Fine Worldwide Mineral Specimens • 628 Whittier...Mountain. • Aquamarine crystals 1 to 3 cm in length from a new location: Sabon Wana, Nar arawa Eggon, Plateau...Plateau state, Nigeria. The crys tals, which were available at the Desert Inn from Simon Harrison, are pale |  | | Journal (issue) | | GearyMurdock ■J fy_______ e c ta d x . in I daho Aquamarine, and Fine Worldwide M ineral Specimens • 628...carbonatite. The complex is emplaced at the basement/plateau basalt boundary and represents an eroded core of...(1978) Titaniferous clinohumite from Gardiner Plateau Complex, East Greenland. Miner alogical Magazine...Elba, Italy 356 : Gilgit, Pakistan 402 : Sabon Wana, Nigeria 306 Bismite: Kingsgate mines, Australia 285 |
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Sabon Wana, Nanarawa Eggon, Plateau, Nigeria