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| | Report (issue) | | respectable,
sometimes exceeding 1 meter, but they do not
approach the giant-sized crystals found in the...from some pegmatites.
This specimen, from Minas
Gerais, Brazil, is housed in the
Deutsches Edelstein Museum...crystals are found
in soils and stream gravels in Brazil. On the other
hand, at high temperatures and pressures...muscovite, chiavennite, danburite,
spessartine, zircon, pyrochlore,
cassiterite, hambergite, Mn-hydroxides...determination is in fact a judgment call, one
that we do notfeel is ours to make. We aspire to be a
practical | 👁 Image
| | Journal (article/letter/editorial) | | 1999), but experimental conclusions apparently
Jo
do not apply to topaz solid solutions found in a wide...coexisting micas in natural systems. In order to do this, almost all the
chemical analyses of topaz (and...plagioclase in the greisenized Rio Branco granite, Brazil (Dos Santos et al., 2013); (L) Argillized granite...al. (1965, 1982),
na
Ouro Preto area, Minas Gerais, Brazil
lP
1 and 2 kbar
London et al. (2012)...region, Brazil
Potosi tin deposit, Rondônia, northwestern
3
3-n
13.2
Yokoi et al. (1987)
Brazil
23 | 👁 Image
| | Report (volume) | | Pernambuco, Recife, Brazil J. S. BETTENCOURT Universidade de Sao Paulo, Brazil C. P. DE CAMPOS Lud...FERREIRA Federal University of Pernambuco, Recife, Brazil 2011 Published by The Geological Society London...(Iran), Asia (Japan and China) and South America (Brazil and Argentina) and spanning rocks from Palaeoproterozoic...–Cambrian granitic magmatism in the Araçuaı́ orogen (Brazil), the Eastern Brazilian Pegmatite Province and...50670-000 Recife, PE, Brazil 2 Institute of Geosciences, University of São Paulo, Rua do Lago 562, 055089-080 | 👁 Image
| | Journal (issue) | | spodumène gemme bicolore de la mine Resplendor (Minas Gerais, Brésil) évoquant une figure primitive. La fausse...Gabriel da Cachoeira, dans le prospect dit de Cabeça do Cachorro (État d' Amazonas). En effet, des sédiments... située près de Sao José da Safira, dans le Minas Gerais. Il s'agit véritablement d'une pièce de taille...géodique d'une pegmatite située à Ponto do Marambaia, près de Caraf (Minas Gerais) : cette énorme cavité était...énormes prismes d'aigue-marine. Toujours dans le Minas Gerais, de belles euclases ont été extraites dans la |
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