 | | Journal (article/letter/editorial) | | netRose (Pink)QuartzLavra da Pitorra, Laranjeiras, GaliléiaMinasGerais,BrazilThere can be...be multiple reasons for including rosequartz crystals in your collection. One that immediately comes to...remarkable number of specimens “wear”their rosequartz crystals as halos, crowns, overgrowths,sashes...found on larger crystals or masses ofsmoky, milky, or colorlessquartz, some exceeding 30 cmin size. This...intriguing and decidedly unique. Although the rosequartz crystals themselvesscarcely reach 3 cm in size |  | | Book | | 1982 Jules Roger Sauer” ForewordFor yearsBrazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits inBrazil isalmost infinite.In addition to the mineral...assemblage one might expect from pegmatite dikes,Brazil alsoproduces a very significant output of diamonds...written in English, and beautifully illustrated.“Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...Century.The book is a showcase ofthe best fromBrazil and it makes a handsome evocation of whatis beautiful |  | | Journal (issue) | | Spann collection; Tom Spann photo.Fluorite withquartz, 11 cm, from Fujian Province, China. Keith & Diane...Kevorkian collection; Jordan Root photo.Fluorite onquartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture...kunzite), 9 cm, from the Urucum mine, Galiléia,MinasGerais,Brazil.Gus & Jane Eifler collection; Holly Smith...what Ifound was chert with occasional well-formedquartz crystals.I had an insatiable curiosity to know...my journey through the mineral world collectingquartzin Arkansas. At the same time I collected fluorescent |  | | Journal (issue) | | Top right: Topaz, 8.4 cm, from Ouro Preto,MinasGerais,Brazil.Lower left: Phosphophyllite, 2 cm, from...Andrea Bartorelli: Mineralsand Precious Stones ofBrazil. Other important references (if any) for individual...da Cabeca mine, Parelhas, RioGrande do Norte,Brazil. Will Johnson collection (I had to buy many unwanted...Morganite beryl, 7.5 cm, from near Araçuai,MinasGerais,Brazil. The find predates thediscovery of morganite...to get this specimen,a complete floater, for myBrazil collection); Tom Spann photo. Reference: Cassedanne |  | | Book | | BARTORELLI::• . . ..MINERALS& PRECIOUSSTONESOFBRAZILSponsored by:VALEMINISTER.IODA CULTURA ©...feldspar, Lin6polis,Divino das Laranjeiras,MinasGerais.Collection of and photographby Julio Landmann...Lavra do Sapo,Ferruginha, Conselheiro Pena,MinasGerais. Collection ofAlvaro Lucio. Photographtaken...Brasileira do Livro, SP,Brazil)Aquamarine (113 mm high), Medina,MinasGerais. Collection of S. & C....Cornejo, Carlos.Minerals & precious stones ofBrazil.Carlos Cornejo, Andrea Bartorelli.[franslation: |  | | Book | | until he managed to reachthe land of his dreams,Brazil. Aspecialist in the field of geologyand mineralogy...France acquired his remarkable collection of giantquartz crystals, exhibited in the National Museum of Natural...crystals and the remarkable mineral treasures ofBrazil, aswell as the incredible adventures and difficulties...CRYSTALS GIANTQUARTZ CRYSTALS UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OFBRAZIL Cyan Magenta...Crystals GIANTQUARTZ CRYSTALS UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OFBRAZILSOFIA–MOSCOW |  | | Book | | inequartz with white inclusions and multiple phantom pattern (#PM0589). Diamantina,MinasGerais, Brazil...District, Tamil ~adu, India. Bottomcenter:Hyalinequartz gemm1 crystals 5 cm acro:;s with a perfect Japan...aggregate of pinkquartz ,.,,th eolc1tecr·1stals(#PM0S00). ltinga,MinasGerais,Brazil. Text and photo:Daniele...collecting efforts on one mineral only:quartz. He collectedquartz in all its color, crystallisation and...about morphological crystallography. He collectedquartz for about two decades, thanks to the help of his |  | | Journal (issue) | | 3FEATUREARTICLESGem Pegmatites ofMinasGerais,Brazil: The Tourmalinesof the Araquai Districts...tourlnaline thon anywhere else in the world-MinosGerais,Brazil; the other with (I new localityfor red tourmaline-Zcrmbia...thousandmiles south, to the "Gem Pegmatites ofMinasGerais." THe first in a series (whichCdntinues in...his extensive travels in the mining regions ofBrazil.Mr. Proctor received an M.S. in molecular biology...graduate gemologist. GEM PEGMATITES OFMINASGERAIS,BRAZIL: THE TOURMALINES OFTHE ARACUAI DISTRICTS |  | | Journal (issue) | | Magdalensburg (Carinthia, Austria), where a series ofquartz crystals were found at a settlement that can be...(Lombardy, northem Italy), a transparent and perfectquartz crystaldoubly terminated and about 2.5 cm in diameter-was...foothills of the Lombardy Alps(Pezzotta, 1999), wherequartz occurs in a deposit very similar tothat of the...the Siciliansulfur deposits; so-called "fensterquartz" of Porretta Terme; gypsum and other minerals of...Valleyand the Siusi Alp; druses of orthoclase andquartz with associatedminerals from the pegmatite geodes |  | | Report (issue) | | from some pegmatites.This specimen, fromMinasGerais,Brazil, is housed in theDeutsches Edelstein Museum...crystals are foundin soils and stream gravels inBrazil. On the otherhand, at high temperatures and pressures...phosphate type pegmatites, beryl isassociated withquartz, microcline, albite,muscovite, biotite, ferrocolumbite...Alpine andhydrothermal veins, it is found withquartzand feldspar. In topaz rhyolites where redberyl...beryl is found, topaz, high-temperaturequartz, and bixbyite are common associatesof beryl.Alteration |  | | Journal (issue) | | in the blue)5-6(Mohs)bright veins visible (quartz?)white flakes (accumulation ofbright veins)GO...much from Sri Lanka, Australia andColombia andBrazil, but what impressed me most was the extentof the...loss is as high as 83% for diamond, and 95%forquartz).Although a high-intensity white light source...flat bases of cabochons(jasper, tiger's eye, rosequartz, moonstone, sodalite) were morepositive than on...reminiscence of a specific find of gem crystals inMinasGerais in1947 and their subsequent use in part by |  | | Journal (issue) | | Articles708 Coloured Stone Mining and Trade inBrazil:A Brief History and Current StatusBy Aurélien...CollectionV. L. Villani photop. 758Cover Photo:Brazil is the source of a variety of coloured stones,...(Figure 4b), spessartine(Figure 4c), almandine,quartz, zircon, apatite,topaz, sillimanite, fluorite...tourmaline (Figure 4d), aquamarine, spessartine,quartz,topaz, zircon and phenakite are mined. Tourmaline...Junior (BC Gemas do Brasil, GovernadorValadares,Brazil), and heating to 500°C in air wassuccessful in |  | | Journal (issue) | | G. WarrenA new find of crystallized rosequartz inMinas G e ra is ...................................B-2120 SchotenCOVER: ELBAITE onquartz fromMinasGerais,Brazil. Thecrystal is 8.5 mm inwidth. Photo...project into the cavities. Sometimes, vugs with smallquartz crystalsor cerussite crystals up to 1 cm are found...as orange-red tabular crystals associated withquartz crystals.Willemite, Z n2S i0 4Fine-grained massive...experiences inBrazil.Caplan was the first to bring museumquality mineral specimens out o fBrazil,specimens |  | | Journal (issue) | | Calcite-Kevin & Mark Brown collection, page 52;Smoky quartz gwindel-Brent Lockhart collection, page 175;...unearthing many fine specimens of gadolinite,smoky quartz, fluorite, feldspar in crystals to five feet...Streeter, R. L. Parker found a piece of "heavyquartz" in a streambed. lt proved to be topaz from a...medium-violet arnethyst crystal specimensfromquartz veins. And textbook-sharp, colorless and transparent...minerals found in Texas. Top row (from left):Smoky quartz, 5.5 cm, from Llano County;Bill Morgenstern |  | | Journal (issue) | | mineral collector—Part 3:Treasure-hunting inMinasGerais since 2000. . . . . . . . . . . ....Mina manganesemine, Conselheiro Lafaiete,MinasGerais,Brazil. Probablythe world’s finest crystal of...cognac-brown, water-clear topaz crystals withmilkyquartz crystals and large, white feldspar crystals.INTRODUCTION...the localTehuelche Indian language, meaning “thesmoky mountain”; this isnot in reference to any volcanism...crystal after crystal. Beautiful groups of milkyquartz crystals to15 cm and large, white feldspar crystals |  | | Journal (issue) | | comFrontcoverSmoky quartz with amazonite, 11.8 cm, fromthe "Smithsonian packet,"Smoky Hawk claim,Florissant...most farnous collector species like amazonite,smoky quartz, rhodochrosite, fl uorite, gold andsilver minerals...this cabinetby a characteristic sample of wbitequartz, interspersed withgold, but the owner of the mine...another in wbich the weight of gold was equal tothequartz. This shows how easy it is for a royal cabinet...three-fourths of an inch lang. Anotherwonder is aquartz crystal, tipped with sbining gold; and othermineral |  | | Journal (issue) | | Printed by Allen Press, Lawrence, KansasFront coverQuartz scepter with pyrite, 7 cm, from Spruce Ridge, King...book. Collectors have reveled inthe beautifulquartz specimens from Denny Mountain and KingCounty,...Monthly,including one on pseudomorphs and one onquartz in 1888, andhe wrote a detailed article for the...were mostly just rocks,beach agates and chunks ofquartz, but they still fascinated me.My first “real mineral”...interrupted my collecting. Butaround 2004, I found somequartz crystals while out fishing. Thatwas the spark |  | | Journal (issue) | | Ceylon. (3) Euclase crystal, 1.8 cm, fromMinasGerais,Brazil. (4) Humite, 2.3 cm, from MountSomma, Italy...Italy. (5) Palladium, 2.1 cm, fromBrazil. (6) Mellite, 2.5 cm, from Thuringia, Germany(?). (7) Aragonite...probably from the Jequitinhonha River area,MinasGerais,Brazil.4Refined Elegance, a Supplement to The...Topaz, 2 cm, fromMinasGerais,Brazil.(10) Chrysoberyl, 2.4 cm, fromMinasGerais,Brazil.(11) Euclase...Euclase, 2.1 cm, fromMinasGerais,Brazil.(12) Olivine, 2.7 cm, from St.John’s Island, Egypt.given the |  | | Journal (issue) | | 1979TELL-TALE INCLUSIONS IN APHENAKITE FROMBRAZILBy E. GÜBELIN,Ph.D., C.G., F.G.A.The following...investigation of fluid inclusionsin a phenakite fromBrazil is intended as an additional contributionfollowing...some phenakites from San MiguelDi Piricicaba inBrazil (Figure 1). As I had never seen aikiniteinclusions...aikinite normally occurs together with gold onquartzveins and thus suggests hydrothermal descent, this...havewritten a certificate to state 'a colourlessquartz sphere', my reasoning being that it was a colourless |  | | Catalog/List | | ‘normal’ habit, often in conjunctionwith euhedralQuartz crystals. The potential for new discoveries and...sideways as well as up. This formis sometimes seen inQuartz, but very rarely in Tourmaline. The roughexterior...matrix and is accompaniedby a partially euhedralSmoky Quartz crystal.The Phenakite, measuring 0.9 inches...sub-parallel prisms of a uniform pink with minorsmokycoloration on exterior surfaces and terminations...amounts of light pink at the base that picks up asmoky cast andlater a few pale green areas at the pyramidal |  | | Journal (issue) | | interest by giving him twospecimens of gold inquartz from the Eungella mine in Queensland,and later...encountered them, including calcite, fluorite, pyrite andquartz. Hebegan to concentrate his efforts evermore on...Rosa mine,Itambacuri,MinasGerais,Brazil.Aquamarine crystal onsmoky quartz, 17 cm, from theShigar...Topaz, 8 cm, from Monte Alegrede Goias, Goias,Brazil.Supplement to The Mineralogical Record, September–October...fluorite andquartz, 15 cm, from theYaogangxian mine, Chenzhou, Hunan Province, China.Quartz (Japan-law |  | | Journal (issue) | | uscovite from the Ze Pinto prospect,M inasGerais,Brazil ............................................. AlvesCrystallized rosequartz from Alto da Pitora,M inasGerais,Brazil ............................AlvesZanazziite, a new mineral fromM inasGerais,Brazil .............................................from Lavra da Ilha, Taquaral district,M inasGerais,Brazil .............................................UniversitariaIlha do Fundao21.190, Rio de Janeiro,BrazilJeanete AlvesDepartamento de Recursos Minerals |  | | Journal (issue) | | uscovite from the Ze Pinto prospect,M inasGerais,Brazil ............................................. AlvesCrystallized rosequartz from Alto da Pitora,M inasGerais,Brazil ............................AlvesZanazziite, a new mineral fromM inasGerais,Brazil .............................................from Lavra da Ilha, Taquaral district,M inasGerais,Brazil .............................................UniversitariaIlha do Fundao21.190, Rio de Janeiro,BrazilJeanete AlvesDepartamento de Recursos Minerals |  | | Journal (issue) | | a. Ammoniumdihydrophosphate.Height 10 cm.b.Quartz.3. Multi edged crystals.Habit transformation...crystals.a. Syntheticquartz ( amethyst).b. Syntheticquartz. c. Naturalquartz.6. Inner strains in...Lithium Mobat.Constitutional strains:c. Syntheticquartzd. Ammonium dihydrophosphate.World of Stones....crystals are formed, which are characteristic ofquartz, or sheet crystals of slate-spar type are formed... but not dense facets, that is extremely sharpquartzrhombohedra, cassiterite dipyramids, etc. The emergence |  | | Book | | many people who, on seeing a crystalof pyrite orquartz, can scarcely believe that it is the work of Nature...54 centimeters. Carbon1414DiamondSilica16Quartz and its varieties 1618OpalAmethyst18Common...Prehnite44Pronsite64Pyrite60Pyromorphite78Quartz and its varieties . 16Realgar66Rhodocrosite.... ;L *'/I.' '1 SilicaQuartz and its varietiesQuartz consists of a combination of the two...a gangue in metallic veins or in veins of purequartz. However, really fine crystals areharder to find |
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