 | | Report (chapter) | | THE MINERAL INDUSTRY OF MADAGASCAR By Thomas R. Yager The Republic of Madagascar, which is the world’s...precious and semiprecious gemstones, quartz, and salt. Madagascar was also known to have deposits of bauxite...and the World Bank announced plans to assist Madagascar in reforming its mining sector. The proposed...References Cited section. THE MINERAL INDUSTRY OF MADAGASCAR—2001 prospecting permit, which is valid for...Malakialina, and Tsaratanana. Other deposits include Betafo Antsirabe, Miandrivazo, and Itrongay. Madagascar’s |  | | Journal (article/letter/editorial) | | Fibrous nanoinclusions in massive rose quartz: The origin of rose coloration JULIA S. GOREVA,* CHI MA...ABSTRACT Pink nanofibers were extracted from rose quartz from 29 different pegmatitic and massive vein...absorption spectra of the fibers and the initial rose quartz, we conclude that these nanofibrous inclusions...massive rose quartz worldwide. These fibers do not occur in the rare, euhedral variety of pink quartz. Redox...closely related material. INTRODUCTION The rose variety of quartz is known and valued from time immemorial |  | | Book | | Japan, 462 Switzerland, 510 Tanzania 463 Madagascar (Malagasy Republic), Malawi Nepal, 482 513... But if antiquities, so an and scriptions quartz] “it of a to seems only two that be For...pearl, zircon, coral, soberyl, garnet, carnelian, quartz, and 10 as The shown gems on a emerald...more km) from Coptos passed center for these district, correspond cites a King to the are to Bostock...location of the mines Holland’s translation, of district, and it could have been Probably these mines |  | | Journal (issue) | | Scholzite crystals su ita b le fo r $ 5 .0 0 ea. Quartz h y d ro u s calcium zinc p h o s p h a te J...Belovite. Bou Azzer, M orocco. 2.75x2. Bladed deep, rose red crystals up to 3/8 in. grouped on m atrix with.../8 x l/2 in. $60.00 BOURNONITE on Sphalerite w. Quartz. Felsobanya, Rom ania. 3x2. A ttractive arrangem...1/4x3/16 in. xls. of bright Bournonite with drusy Quartz. $65.00 GRATONITE (Rare), C erro de Paso, Peru...natural base. $125.00 GALENA. St. Joseph Lead District, Mis souri. This is the m ost brilliant cubic |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Especially when the mineral species is common, such as quartz (75.1.3.1), many varieties (jasper, onyx) are known...chemistry and structure are identical to those of quartz. 5D. Polytypes Materials whose basic structural...only with fibrous minerals Columbite, wolframite Quartz Opal, some yellow varieties of sphalerite Nepheline...are distinctive. Chonchoidal fracture, typical of quartz, gives a fracture similar to the interior of a...Calcite 4 5 6 Fluorite Apatite Orthoclase a Quartz Soft, greasy feel like tale and graphite, and |  | | Book (edition) | | (21). (20). Tourmaline Type Phenacite Type Quartz Type 109 110 112 114 Mathematical Relations...Etudes Crist., Paris, 1866 (1849); Schrauf, 1866-68; Rose-Sadebeck, 1873. RECENT WORKS include the following:...the term crystal was applied only to crystals of quartz, which the ancient philosophers believed to be...cryptocrystalline; this is true of some massive varieties of quartz. If the definite molecular structure is entirely...in crystals of small size. A single crystal of quartz, now at Milan, is three and a quarter feet long |  | | Book | | a fine blue reflection forming a constituent of quartz-porphyry (Aglauritporphyr) from Teplitz, Bohemia...bluish or greenish crusts, nests, and veins in quartz veins in black clay-slates near Alushta and elsewhere...wardite, or a mixture of these, in a matrix of quartz, chalcedony, &c. So called (A-matrix) because it...a crystalline 11 limestone at Ambatoarina, Madagascar. Compare Ancylite (G. Flink, 1900; 2nd List.)...ortho¬ rhombic) prisms in pegmatite at Ampangabe, Madagascar. It approximates in composition to the heterogeneous |  | | Book (edition) | | 832) Traite Min. 2, 126. A mixture of albite and quartz according to H.J. B rooke and W.H. Miller ( 1 852)...cryptocrystallinc varieties of quartz. 7 8 Aga Agate-jasper. var. of quartz. E.S. Dana ( 1 892) Syst....later concluded that ii was pure Pd. Sec also G . Rose ( 1842) Ann. Phys. Chem. (Pogg. ) . 55. 329. Shown...utahlite or warditc. or a mixture of these. in a quartz-chalcedony mau-ix . Named from · A-matrix· since...Min. 38. 265. Orthorhombic. (TL) Ambatoarina. Madagascar. Named for locality. Amber. a fossil resin. Contains |
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