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Smoky Quartz from
Buranga pegmatite, Muhororo, Ngororero District, Western Province, Rwanda


Locality type:Pegmatite
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Buranga pegmatite, Muhororo, Ngororero District, Western Province, Rwanda
Data Identifiers
Mindat Occurrence Record ID:790453
Long-form Identifier:1:3:790453:0
GUID (UUID V4):49e109e9-b024-4d89-92dc-c54e68586ab0
References
Reference Search (possible matching items)
Journal (article/letter/editorial)
their unusual mineral species. The Palermo No. 1 pegmatite is located in the White Moun­ tains of central...North Groton. Its surround­ ings and even the pegmatite itself are unpretentious. The min­ erals of greatest...issue of Rocks and Minerals entitled " T h e Pegmatite Minerals of the Palermo Quarry." Verrow's mineral...served to reveal the truly rich mineralogy of this pegmatite. By the end of the 1943 mining season, General...to Mineral Materials Incorporated, which mined quartz for building stone. The year 1973 saw another change
Journal (issue)
Richard A. Bideaux M ineralogist feature articles Pegmatite Phosphates: Descriptive Mineralogy and Crystal...Alexander County, North Carolina, and those superb quartz crystal groups with cavernous crystals and striking...Supply Co. $65.00. The Mineralogical Record Pegmatite Phosphates: Descriptive Mineralogy and Crystal...phosphate minerals, which occur at all stages of pegmatite genesis, are among the most extensive of any mineral...interest in them than mineralogists. No doubt, the pegmatite phosphates prove most reward­ ing collecting material
Book
MINERALS& GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published...rutile crystals partially included in transparent quartz crystals, 3 cm - Philip Hitge specimen, Bruce Cairncross...East African resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties...is not commonly known that neighbouring Uganda, Rwanda and Burundi are also sources of some interesting...the gem-quality tourmaline that can be found in Rwanda). Literature on the subject is limited; the previous
Journal (article/letter/editorial)
GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS, BRAZIL: GENETIC IMPLICATIONS Maxime...The Sapucaia pegmatite is located in the well-known Eastern Brazilian Pegmatitic Province (EBPP), Minas...Minas Gerais, Brazil. Detailed mapping of the pegmatite body revealed five zones, showing distinct mineral...intermediate zone (IZ), and a quartz core (Q). Phosphate masses found in the pegmatite contains two different...ferrisicklerite + montebrasite + quartz, and triphylite + albite ! almandine + quartz, respectively. Finally,
Book
phosphorus handbook. Wiley. New York Moore PB (1982) Pegmatite minerals ofP(V) and B(III). Mineral Assoc Can...California. The associated minerals include witherite, quartz, fluorapatite and sanbornite Optical Constants:...Mode of Occurrence: Occurs in large masses in pegmatite at several mines in the Custer-Pringle area, Custer... South Dakota. Also found in pegmatite at Chanteloube, France; Buranga, Ruanda; Varutrask, Sweden; Sukula...Sukula and Lemnas, Finland; and in several other pegmatite deposits Amblygonite Optical Constants: IX
Book
RELATIONSHIP OF THE MALAWI CARBONATITEALKALINE PROVINCE AND THE LUPATA-LEBOMBO VOLCANICS 237 A, R. Woolley...Gass 14 THE EVOLUTION OF THE TIBESTI VOLCANIC PROVINCE, EASTERN SAHARA P. M., Vincent : 15 THE STRUCTURAL...Highlands and part in the Midland Valley. In the Western Highlands he and Richey established for the first...concentrations. Such was the study of the Nuanetsi Igneous Province in Rhodesia. The ring complexes there appeared...200. The parent magma of the British Tertiary Province. Summ. Progr. geol. Surv. G.B., Pt. 2 (for 1930)
Book
Sciences Harald G. Dill The HagendorfPleystein Province: the Center of Pegmatites in an Ensialic Orogen...Pirajno, Geological Survey of Western Australia, and The University of Western Australia, Perth, Australia...com/series/7377 Harald G. Dill The Hagendorf-Pleystein Province: the Center of Pegmatites in an Ensialic Orogen...constituents the three rock-forming minerals feldspar, quartz and mica, which in places develop mega-crystals...material extracted from pegmatites is feldspar, quartz and mica, and only a tiny fraction of pegmatites
Book (edition)
Calcite Fluorite Apatite 6 7 8 9 10 Orthoclase Quartz Topaz Corundum Diamond In a few descriptions we...crystallize with right- or left-handed forms (e.g., quartz). epitaxy Overgrowth of one crystal on another...(4) fluorite, (5) apatite, (6) orthoclase, (7) quartz, (8) topaz, (9) corundum, (10) diamond. monochromatic...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...associated with authigenic orthoclase, pyrite; quartz, dolomite, and analcime. SELECTED REFERENCE: Milton
Book (edition)
Calcite 4 Fluorite 5 Apatite 6 7 8 9 10 Orthoclase Quartz Topaz Corundum Diamond In a few descriptions we...crystallize with right- or left-handed forms (e.g., quartz). epitaxy Overgrowth of one crystal on another...(4) fluorite, (5) apatite, (6) orthoclase, (7) quartz, (8) topaz, (9) corundum, (10) diamond. monochromatic...of weakness caused by deformation or twinning. pegmatite Very coarse-grained granitic rock representing...associated with authigenic orthoclase, pyrite; quartz, dolomite, and analc1me. SELECTED REFERENCE: Milton
Book
away. This type of pseudomorph forms commonly as quartz after calcite. Often called perimorph (the new...molding (Abformung) a. Molding by being coated; e.g., quartz encrusting calcite that then disappears. b. By...Ausfüllung); e.g., the famous talc pseudomorphs after quartz crystals from Göpfersgrun, near Wunsiedel in Bavaria...azurite b. taking up a component; e.g., talc after quartz c. replacement (austausch) of a component; e.g...native copper after aragonite 4. Perimorphs; e.g., quartz after calcite. What is perhaps the most authoritative
Book
120) Page 6: Mimetite (see page 139) Page 248: Quartz (amethyst variety), Erongo Mountains, Namibia *...Earth’s crust are composed ofjust a few minerals; quartz and the feldspar group are the most abundant processes...A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...growth, as exemplified by tourmaline in schist, quartz or phlogopite. Space for Growth Cavities in rocks...about the same time, as happens with pyrite and quartz, or they may have grown one after the other, as
Book
500 and Locality Index, Author Index, 651 Rwanda-Burundi, 500 XI 627 PREFACE This book, family... 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
Book (edition)
very old origin, often without lrnown source. e.g. quartz or cinnabar. Current practice most often names...polished mineral surface, expressed in clase. 7 - quartz. 8 - topaz, 9 - corundum, 10 - dia- percentage...expressed in abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture)...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....the revolution in 1997. Its mineral rich Katanga province was renamed Shaba by Mobutu, and is now the Katanga
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
are tiny black flecks of 1nica, glassy grains of quartz, and yellow feldspar all forged in the fiery heat...onyx are produced by treating agate, a type of quartz, with heat and a solution of sugar and water. ...also non-gem minerals such as crocoite and rose quartz. Many rocks and minerals are sources of the ores...various places, including the Teth~ Seaway. South-western North America was f i (led by the Sundance Sea...various minerals. The conunonest minerals to fonn are quartz, feldspars, n1icas, amphiboles, pyroxenes and olivine
Book
just three stones picked up on a beach, it is quartz, and yellow feldspar - not surprising that many...them broke down and were made anew in different quartz. Many rocks and minerals are sources of the ores...various places, including the Tethys Seaway. South-western North America was flooded by the Sundance Sea....from blocks that didn't drop. The Basin and Range Province of the south-west USA (right) formed in this way...Borneo and boundary (see Inside the Earth, this western USA, which erupted 175,000 covers nearly 5 million
Book (chapter)
away. This type of pseudomorph forms commonly as quartz after calcite. Often called perimorph (the new...molding (Abformung) a. Molding by being coated; e.g., quartz encrusting calcite that then disappears. b. By...Ausfüllung); e.g., the famous talc pseudomorphs after quartz crystals from Göpfersgrun, near Wunsiedel in Bavaria...azurite b. taking up a component; e.g., talc after quartz c. replacement (austausch) of a component; e.g...native copper after aragonite 4. Perimorphs; e.g., quartz after calcite. What is perhaps the most authoritative
Book
photographs on the cover Editor Robert F. Martin Quartz, variety amethyst, sceptre habit, Denny Mountain...Publisher Info 1000° Mots inc. Native Gold on Quartz, Paymaster mine, South Porcupine, Ontario / Photo...Printing AGMV Marquis imprimeur inc. Barite on Quartz, Rock Candy mine, Grand Forks, British Columbia...except for: Boulangerite, Fluorite, Hematite, Smoky Quartz and Riebeckite / Royal Ontario Museum collection...the particular polymorphic forms, e.g., a- and B-quartz. assignment of a name, such as exist for chemical
Journal (volume)
characterization of different polycrystalline materials (i.e., quartz, SiC and α-Al2O3). The crystal sizes determined...their uniform parental material, mainly composed of quartz from seasediment formations (Tables 2 & 3). Table...for the sandy soils of Divjaka region (Central-western Albania). The experiment was realized in a greenhouse...gas feedstock) were investigated in a fixed-bed quartz micro-reactor. The results indicate that when Ni(NO3)2...Siliceous sedimentary rocks are composed by silica (quartz and opal-CT), aluminium silicates (clay minerals
Report (issue)
(1983) (English). Microprobe analyses (13) from western Lepontine, Alps. AMPHIBOLE. Frechen (Neues Jahrb... 143-155 (1983). Mioroprobe analyses (4) from western Scotland. AMPHIBOLE. Moore, J. Petrol. 25, 126-150... 397-414) (1987) Microprobe analyses (7) from Western Alps, Italy AMPHIBOLE. Poporadze, (Nauchn. Tr....415-436) (1987) Microprobe analyses (4), Grenville Province, Canada. AMPHIBOLE. Thomson et al. (Can. Mineral...10, 76111 (1984). Stability in system analcime + quartz = albite. ANALCIME. Ueda et al., (J. Phys. Chem
 
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