 | Kurat, G., Palme, H., Embey-Isztin, A., Touret, J., Ntaflos, T., Spettel, B., Brandst�tten, F., Palme, C., Dreibus, G., Prinz, M. (1993) Petrology and geochemistry of peridotites and associated vein rocks of Zabargad Island, Red Sea, Egypt. Mineralogy and Petrology, 48 (2) 309-341 doi:10.1007/bf01163106 | Journal (article/letter/editorial) | | Peridotites and Associated Vein Rocks of Zabargad Island, Red Sea, Egypt* G. Kurat 1, H. Palme 2, A. Embey-Isztin...March 31, 1993 Summary Zabargad (St. John's) Island in the Red Sea contains three ultramafic bodies,...Meet, Agypten Auf der Insel Zabargad (St.John's Island) im Roten Meer befinden sich drei PeridotitK6rper...Welt sehr/ihnlich. Die am st~irksten verarmten Peridotite scheinen aueh die st/irksten metasomatischen...Introduction Zabargad (St. John's) Island is located near the central trough of the northern Red Sea at about 23°36 |  | | Journal (article/letter/editorial) | | R.S.E., A.R.S.M., Director Geological Survey of Egypt; and H. F. HAEWOOD, M . S C , Ph.D., A.I.C., Lecturer...Dr. Hume on the igneous and metamorphic rocks of Egypt, and in the course of his kind criticism of the...from the region in the South-Eastern Desert of Egypt, where this type of rock is most GKOT,. MAG. 192O...Nos. 2 to 5 were obtained from the region in S.E. Egypt where these rocks are most conspicuously developed...Khrug. The majority of the gneisses occurring in Egypt may be classed either as granite-gneisses (crushed |  | | Book | | Sheet Gem Deposits: 115 119 The Zabargad Island, Egypt, Peridot Deposits 9. Diamond Pipes: 129 The...respectively. The classic peridot of Zabargad Island, Egypt and the new find at Argyle in Western Australia...Australian opal mining. Photographs of Zabargad Island were generously provided by Dr. Peter Bancroft...of very heavy minerals is typical of gold and platinum, which sometimes are referred to as the noble...of all placer deposits are found on the tropical island of Sri Lanka (formerly Ceylon), without doubt, | | | Book | | Sheet Gem Deposits: 115 119 The Zabargad Island, Egypt, Peridot Deposits 9. Diamond Pipes: 129 The...respectively. The classic peridot of Zabargad Island, Egypt and the new find at Argyle in Western Australia...Australian opal mining. Photographs of Zabargad Island were generously provided by Dr. Peter Bancroft...of very heavy minerals is typical of gold and platinum, which sometimes are referred to as the noble...of all placer deposits are found on the tropical island of Sri Lanka (formerly Ceylon), without doubt, |  | | Journal (article/letter/editorial) | | manganese and aluminum have been measured for St. John's olivine undergoing cation exchange with synthetic...containing relatively high concentrations of Sin, St, and Pb - these crystals were essentially "xenocrysts'"...olivine (approximately 90% forsterite) from St. John's Island, Egypt was immersed in olivine-saturated, basaltic...at an JO2 of 10 -8 atm: diffusion is o u t of St. John's olivine cube; a Microprobe data (wt.%) versus...concentration, 9.3 wt.% Fe, was evaluated on a St. John's olivine blank. In addition, the surface concentration |  | | Book | | Crystals may he rounded and polished naturally and platinum. They are not true gemstones, but they are attractive...own intrinsic value, often as settings for gems. Platinum is the rarest and the most valuable. precious... ite stones, like on green made Compos- the red garnet glass (above), are of more than one piece...erosion, are carried by rivers to lakes or the sea. SEDIMKN TARY Metamorphic Rocks ROCKS may are...tree resin, collected from soft sediments or the sea. Jet is fossilized wood, found in some sedimentary |  | | Journal (issue) | | (translated b y Carol Stockton) 191 Gem Garnets in the Red-to-Violet Color Range D. Vincent Manson and Carol...Koivula Managing Editor Alice S. Keller 1660 Stcwart St. Santa Monica, C A 90404 Telephone: ( 2 13) 829-2991...organization for the jewelry industry, 1660 Stewart St., Santa Monica, CA 90404. Any opinions expressed...exported to Egypt during the predynastic period as well as all early dynasties. In Egypt, however, objects...tetrahedra are linked at their four apexes to form red. Thus the blue color, which usually increases six |  | | Journal (article/letter/editorial) | | ZjA and Z without calculating individual values of St. A modified form of this equation was used by Smith...Duke University on December 13, 2012 where Q and St are the concentration and stopping power of the /-th...JohnsonMatthey Specpure vanadium pentoxide in a platinum crucible under oxidizing conditions. The change...fS ON fN (N — (S OO Q ON Olivine Chemical* (St. John's Is.) X.R.Fj Adopted « < — VO fN Os to O r^...samples and standards. The analyses for the St. John's Island olivine, shown in detail in Table 13, have |  | | Book | | tombs. Lapis was im¬ ported from Turkestan into Egypt nearly ten centuries before Moses led the Hebrews...acquires loose gems and sets them in gold and platinum settings, often with small diamonds. Other manufacturers...the absorbed colors. A ruby, for example, appears red because it absorbs blue, yellow, and green wavelengths...in most jewelry shops. To most people garnet is a red gem, yet it occurs in shades of purple, orange, pink...Jade is not only green, but can be blue, purple, red, brown, gray, white, or yellow. In gems, subtleties |  | | Report (issue) | | Street, London, S.W.1; 37 Peter Street, Ma.nohester; 1 St. Andrew's Crescent, Cardiff; or '23 Forth Street...Street, London, S. W.1; 37 Peter Street~ Manchester; 1 St . Andr ew's Crescent, Cardiff; or 23 Forth Street...will also be had to graphical re,p1·esentation of st-atistios of production, consumption,, costs and prices...••• Spain Sweden ••• Turkey ••• .. . I O 0 Egypt •• • Madagascar ... Cuba ... ••• Santo Domingo...copperP}Trites, toget}1er with varying· amounts of platinum and palladium. Garnierite is a soft, earthy mineral |  | | Book | | fine hematite "Iron rose", 10cm across, from Fibbia, St Gotthard, Switzerland. lnstitut fur Mineralogie und...Cassiterite Cassiterite Manganite Scheelite South Africa St Andreasberg, Harz, FRG Shikoku, Japan Grube Georg...Cumberland, GB Vlb Nordmark, Sweden VI la St John's Island, Red Sea, Egypt Vllb Morawicza (Ocna defier), Banat...Kirgizia, USSR Vllb Miralani Hills, Tanzania Vllb St Andreasberg, Harz, FRG VII lb Ain Babouk, Constantine...aggregates in situ. The main mineral display is on the 1 st floor, but another 1 00 or so large specimens are |  | | Journal (article/letter/editorial) | | Boakite. A trade name for a brecciated green and red jasper. R. Webster, Gems, I962, P. 753. Bombollalite... Acta, 54, 1112. The 'IO A Manganite' from deep-sea nodules described by W. Buser (in Oceanography, Amer...[M.A. 15-352.] Creolite. A superfluous name for a red and white banded jasper from California. R. Webster...unspecified green and white rock from Vancouver Island, British Columbia. R. Webster, Gems, 1962, p. 755...An objectionable trade name for artificial light-red corundum. R. Webster, Gems, I962, p. 755. Not to |  | | Book | | F. HUME, the Pioneers of the E astern Desert of Egypt 1\1:ultum non multa Plinius ]1-1,nior CONTENTS...OF SUEZ AND THE NORTHERN RED SEA . . . . . 7 . r. Tectonic map of Egypt by N. A. Syagaev . . . ...Southern Area of the Red Sea Hills towards the Sudan border (Photogeological map of Upper Egypt by Hunting, 1967)...1967) 4. Border area between Sudan and Egypt 5. A. Stratigraphic correction . . . . . . B. Tectonics... . . . . a) Fault Zones crossing the Northern Red Sea. b) The Cairo Graben . . . . . . c) The northern |  | | Journal (issue) | | ARTICLES 2 Zabargad: The Ancient Peridot Island in the Red Sea Edward Gu belin 9 Cubic Zirconia: An Update...Managing Editor Alicc S. Keller 1660 S t c w a r t St. Santn Monica, CA 90404 Telephone: (213) 829-299...organization for the jewelry industry, 1660 Stewart St., Santa Monica, CA 90404. Any opinions expressed...1981 1 ZABARGAD: THE ANCIENT PERIDOT ISLAND IN THE RED SEA By Edward Giibelin Reflecting on his 1980...provides 11ti update o n this relatively u n k n o w n island and the bcarrtiful peridots for w h i c h i t has |  | | Book | | nine parts of hydrochloric acid will dissolve platinum. All of these acids , mixed or sepa rate, are...arsenates. Soluble in acids. Metals (e.g. gold and platinum in aqua regia); sulphides; some oxides; hydroxides;...encrustations can be removed with HF. Gypsum. Any clay st icking to the crystals can be washed off with water...composition). Some ore deposits, including those of platinum, are found as segregations in large igneous intrusions...Evaporation of saline lakes, or enclosed arms of the sea, gives rise to salt deposits termed 'evaporites' |  | | Book | | tangled mass of fine, blackishgreen needles with shiny red grains between them. The freshly fractured surface...name to you. The green needles are hornblende, the red grains are nothing else but garnets, the same 'garnet'...choice of three colors: black, red and yellowish-brown. Two of these, red and yellowish-brown, were supplied...niobium M oxygen phosphorus Pb lead 0 p G N M Pc platinum R, radium s Sb s, Sn s, T, Ti u V w y Zn...lakes, or in the sea. The majority of sediments are marine, i.e. deposited in the sea. Residual formations |  | | Journal (issue) | | Manson Managing Editor Alice S. Keller 1660 Stewart St. Santa Monica, C A 90404 Telephone: ( 213) 829-299...organization for the jewelry industry, 1660 Stewart St., Santa Monica, CA 90404. Any opinions expressed...paper documents made from the papyrus indigenous to Egypt. The scarab seal took its convex shape from the...symbolized the sun god and eternity in ancient Egypt. On the flat bottom side, the artisan engraved hieroglyphic...were more often employed. According to Ball (1950),Egypt was the world's greatest producer of gems from approximately |  | | Journal (issue) | | Miller Famous Mineral Localities—Saint John’s Island, E gypt..........................................Harker, 42 Oxford St., Leicester LE1 5XW South Africa: Horst Windisch, 30 van Wouw St., Groenkioof, Pretoria...MINERALS Telephone 624-2 132 111 W. W A S H IN G T O N ST., TUCSO N, A R IZ O N A 85701 F. CURETON II & SONS...by F M members. Ed. CALVIN MITCHELL FARM DeKalb, St. Lawrence Co., New York by George Robinson This famous...467-0212 Pink a p o p h y llite , St. Andreasberg, Harz; Raspberry red rhodoch ro site , “Wolf” mine, Herdorf |  | | Report (issue) | | 294, 1-61 (1981). Microprobe analyses (8) from Red Wine alkalic complex, Labrador. AEN1GMAT1TE. Howie...(1982)) Chem. Abstr. 97, no. 8, 58726 (1982). Infra-red spectrum. AESCHYNITE. Shabalin, (Mineral. Zh. 3,...(1982)) Chem. Abstr. 97, no 8, 58726 (1982). Infra-red spectrum. AFGHANITE. Leoni et al., (Rend. Soc. Ital...(1982). Synthesis by hydrolysis at 60°. X-ray, infra-red data. AKAGANEITE. Gonzalez-Calbet et al., (J. Inorg...no. 22, 184683 (1981). Synthesis, x-ray and infra-red data. AKAGANEITE. Nagai et al., (Ferrites, Proc. |  | | Book (edition) | | purpose of closing the shell. "Adelaide ruby." Blood-red pyrope (garnet) from South Africa. adinol. A silicified...and prized by the negroes of West African coast. Red, blue akabar. agate opal. See opal agate. agate... Asia Minor. Now sometimes applied to violetish-red spinel. alabaster. translucent to semitransparent...variety of cHrysoberyl, emerald green in daylight, red to violet . by ordinary artificial light. A From...coral of inferior quality from the Mediterranean Sea. More specifically only that from the Algerian coral |  | | Journal (issue) | | Minas Gerais, Brazil. Joe Budd photo. Gold, 8 cm, St. Johns, Newfoundland, Canada. Joe Budd photo. Supplement...January-February, 2009 KEVIN BROWN COLLECTION Red beryl, 2.1-cm crystal, Wah Wah Mountains, Beaver...DIANE & KEITH BROWNLEE COLLECTON lt----------- Red beryl, 4.3 cm, Violet cl Mountains, Utah. Ex Dea...2009 SANDRA B. GEE COLLECTION Gypsum, 4.9 cm, Red River Floodway, Winnipeg, Manitoba, Canada. Joe Budd...Tsumeb, Namibia. Jeff Scovil photo. Gold, 6.4 cm, Red Ledge mine, Nevada County, California. Jeff Scovil |  | | Book (edition) | | Greece, minerals have formed by the reaction of sea water with slags of lead ores. The slags were produced...more than 2,000 years ago and were dumped into the sea: are the Laurium minerals man-made, or are they natural...ions). In metals, atoms are positive ions in a "sea" of loosely held electrons. In covalent bonding,...Greenish-black Red Scarlet Hematite Limonite Black, brown, red Brownish yellow Red Rusty yellow-brown...Black Siderite Brown, green White Zincite Deep red Orange Test for streak—the color of a powdered |  | | Book | | igneous rock granite forms a formidable barrier to the sea. LEFT --- ... Juan River valley, Cortez, Colorado...gravity - are transported to an area such as the sea, and there they are deposited. They are finally consolidated...relatively shallow sea; the coral reefs were probably similar to the shallow-sea reefs off the Australian...compound. The growth of geology The birth of a new island In November 1963 the crew of a small vessel off...formation of a new island, which was named Surtsey. The volcano is still active and the island is still growing |  | | Journal (issue) | | rtJ/'tclif!t • rti,lt s. ROCKS and MINERALS, 157 WELLS ST., PEEKSKILL, N. Y. U. S. A. The official Journal...Idaho, at the home of Frank S. Zimme.rman (42~ N. 6th St.) and with Mr. Zimmerman, are to visit a number of...Herbert Grand-Girard, PublicityOiairman 817 Mulford St., Evanston. Ill. (See pages 270, 303 and 335) Sept...TRIPS FOR PENNSYLVANIA L. J. Duersmith, 933 Spruce St., Columbia, Penn., would conduct a number of field...fluorine. Ferruginous quartz of varying shades of red and brown may contain either ferric or ferrous iron |  | | Book | | largest group are further subdiv ided according to st ructure. All silicates are based on the 'silicate...Surra Burra (Australia). C Cu Colour: light rose-red on fresh surface Lustre; opacity: metallic; opaque...translucent green when ve ry thin Streak: copper-red Hardness: 2.5-3 Specific gravity: 8.93 Cleavage;...made harder and paler by alloying with silver, platinum, zinc or nickel. The largest nuggets Include one...tonnes (25 tons), is mined at Ovifak and Disko Island (Greenland). Nickel-iron in the form of meteorites |
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