 | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Book | | Granitic Pegmatite, Parelhas, Rio Grande do Norte, Brazil Reprinted from: Minerals 2019, 9, 233, doi:10.3390/min9040233...Province (BPP) from Rio Grande do Norte in Northeast Brazil. The Boqueirao granitic pegmatite is classified...coloured by chromium and sometimes vanadium. The first group of authors in their review proposed an enhanced...sources (i.e., Afghanistan (Panjsher Valley), Brazil (Itabira), Colombia (Coscuez), Ethiopia (Shakisso),...e., yellowish-green to green coloured andradite garnet) from serpentinized harzburgites situated in Dobšiná |  | | Journal (issue) | | 386 Gem Notes Large kunzite from Brazil| Marble-hosted ruby mine, Mogok, Myanmar|Secondary gem deposit...from Idaho|Dumortierite inclusions in quartz from Brazil|Quartz sphere with large inclusion|Zawadi sapphires|Tourmaline...Microsystems, Wetzlar, Germany; Bear Williams, Stone Group Laboratories LLC, Jefferson City, Missouri, USA;...spectroscopy (550–1000 nm) that was released by Gemlab Group in December 2014. The spectrometer has a higher...Kunzite Gem Crystal from Brazil The granitic pegmatites of Minas Gerais, Brazil, are well known for producing |  | | Journal (issue) | | multi-stars in other minerals, especially in spinel and garnet, on the other hand, is well understood (Switzer...intersecting at angles of 60° to each other is due to one group of three sets of oriented needle-like inclusions...perpendicular to the c-axis; one group of needles (designated group B) is inclined at an angle of 24...the stars are indicated by black dots: (a) one group of needles (A, three light bands) forms a six-rayed...caused by three sets of inclusions (designated as group A) with an orientation perpendicular to the c-axis |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed...to the chemical formula, allegiance to a mineral group, symmetry and crystal structure as well as the strongest...chemical formula, structure (crystal system, space group, and unit cell dimensions), and at least some other |  | | Journal (issue) | | sunstone from India • Staurolite in kyanite from Brazil • Obsidian with spessartine inclusions • Fluorite...were occasional finds over the centuries in India, Brazil (Cassedanne, 1989), and perhaps elsewhere, the...been cut from a large crystal found at the Finsch mine in South Africa. Figure 2. The Tiffany yellow diamond...of rough recovered from a claim on the Kimberley mine was later fashioned into the Tiffany diamond (again...(again, see figure 2). In 1964, the Dutoitspan mine yielded a spectacular 253.70 ct transparent yellow |  | | Journal (issue) | | occasionally recovered by hobbyist collectors from the mine dumps. D uring the late 19th and early 20th centuries...a Byrud emerald in an antique jewelry piece. The mine is located on the shore of Lake Mjøsa, near Minnesund...Northwest Territories, Canada; Salininha in Bahia, Brazil; Ma- 108 EMERALDS FROM BYRUD, NORWAY lipo in...assets sold to the Cornish Development Co. Ltd. The mine was subsequently abandoned in 1909 (Nordrum and...and a small workshop were reportedly built at the mine, but few vestiges are visible today. However, production |  | | Journal (issue) | | ($250,000) Monday Debate Centers The Steinmetz Group Instore Magazine GIA's 75th Diamond Anniversary...Professional Jeweler ABN Amro Bank/ The VNU Jewelry Group Monday Afternoon Interlude Opening Session with...By My Way Jewelry Co. Inc. Hotel Key Cards TJF Group (in collaboration with Vicenza Fair on the Italian...Block Insurance Tuesday Debate Centers Rapaport Group of Companies Cybercafé GRC Travel Grant Sponsorships...rhodochrosite, 2.59 ct Paraíba tourmaline from Brazil, 8.51 ct Sri Lankan spinel, 13.00 ct Madagascar |  | | Journal (volume) | | .............................245 EG52 Platinum-group minerals in the new millennium.............................................319 EM61 Mineralogy of mine wastes and contaminated soil......................belts, bringing up xenolith suites dominated by garnet lherzolites. By analogy with Archean peridotite...refertilisation, with progressive addition of cpx and garnet, and lowering of Mg#, in the peridotites. Within...[1]. Chromium-rich spinels MCr2O4 are part of a group of exciting and challenging materials that have |
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