Lindbergite, a new Mn oxalate dihydrate from Boca Rica mine, Galiléia, Minas Gerais, Brazil, and other occurrences

Atencio, Daniel; Coutinho, José Moacyr Vianna; Graeser, Stefan; Matioli, P. A.; Filho, Luiz Alberto Dias Menezes

doi:10.2138/am-2004-0721

Cited by 25 publications

(16 citation statements)

References 3 publications

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“…Uranyl compounds that may form by the alteration of nuclear waste will incorporate radionuclides into their structures, thereby retarding their release. Uranyl silicates (e.g., uranophane, uranophane-beta, boltwoodite, haiweeite, weeksite) are likely to be abundant in a geological repository for nuclear waste, owing to the alteration of spent nuclear fuel and borosilicate waste glass in the presence of Lindbergite (Atencio et al 2004b; Fig. 3C) is an oxalate found for the first time in 2002, in the Lavra da Boca Rica, Sapucaia do Norte, Galileia Co., Minas Gerais, by Luiz Alberto Dias Menezes Filho.…”

Section: Technologically Important Mineralsmentioning

confidence: 99%

The discovery of new mineral species and type minerals from Brazil

Atencio

2015

Braz. J. Geol.

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RESUMO:Os minerais foram vistos apenas como fontes de produtos químicos: minério de ferro, minério de cobre, etc. No entanto, não são apenas associações de elementos químicos, uma vez que apresentam estruturas cristalinas. Essas duas características em conjunto proporcionam propriedades que podem ser tecnologicamente úteis. Mesmo que um mineral ocorra em quantidade muito pequena, o que não permite a sua extração, pode servir como um modelo para a obtenção do análogo sintético em uma escala industrial. É necessário que uma proposta de novo mineral seja submetida à aprovação pela Comissão de Novos Minerais, Nomenclatura e Classificação (CNMNC) da Associação Mineralógica Internacional (IMA) antes da publicação. Somente 65 espécies minerais válidas foram descritas pela primeira vez no Brasil, isto é, minerais-tipo do Brasil. Dezenove delas foram publicadas entre 1789 e 1959 (0,11 por ano). De 1959, quando a CNMMN (hoje CNMNC) -IMA foi criada, até 2000, 18 espécies minerais brasileiras aprovadas permanecem válidas (0,43 por ano). No entanto, o número de minerais-tipo do Brasil aprovados nos últimos 15 anos (2000 -2014) foi substancialmente maior: 28 (1,87 por ano). Esse número é muito pequeno considerando a grande variedade de ambientes geológicos brasileiros. As duas primeiras espécies-tipo do Brasil, descobertas no século 18, crisoberilo e euclásio, são importantes minerais gemológicos. Dois outros minerais-gema, membros do supergrupo da turmalina, foram publicados apenas no século 21: uvita e fluor-elbaíta. Alguns minerais-tipo do Brasil são muito importantes tecnologicamente falando. Alguns exemplos são menezesita, coutinhoíta, lindbergita, pauloabibita e waimirita-(Y). menezesite, coutinhoite, lindbergite, pauloabibite, and waimirite-(Y). PALAVRAS-CHAVES:

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Section: Technologically Important Mineralsmentioning

confidence: 99%

The discovery of new mineral species and type minerals from Brazil

Atencio

2015

Braz. J. Geol.

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“…This oxalate was also later detected as a secondary mineral, associated with different ores in Germany, Switzerland, and Brazil and is now classified under the name lindbergite [162]. However, the origin of these formations is not totally clear.…”

Section: Transition Metal Oxalatesmentioning

confidence: 99%

Oxalate Biominerals

and

Monje

2008

Biomineralization

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“…The described instability was also observed and commented in the case of the natural species. [14] Conclusions Vibrational spectroscopy, and in particular Raman spectroscopy, constitutes an important tool for the study of biominerals and biomineralization processes. [27 -30] In this context, the thorough spectroscopic characterization of chemically pure oxalates constitutes an aspect of central interest as such information provides the basis for the rapid and sure identification of natural oxalates, generated either as biominerals, as secondary minerals in certain ore deposits, or as a consequence of bioderioration processes.…”

Section: The Relative Instability Of Mn(c 2 O 4 ) · 3h 2 Omentioning

confidence: 99%

“…[14] A natural trihydrate has been also detected on small quartz crystals, associated with braunite and other manganese minerals. [14] Accumulation of Mn(C 2 O 4 ) · 2H 2 O resulted also from the interaction of the lichen Pertusaria corallina with manganese-rich ores. [15] Both Mn(C 2 O 4 ) · 2H 2 O and Mn(C 2 O 4 ) · 3H 2 O, together with a third hydrate, mentioned as γ -Mn(C 2 O 4 ) · 2H 2 O, could also be synthetically obtained.…”

Section: Introductionmentioning

confidence: 99%

Vibrational spectroscopic investigation of the hydrates of manganese(II) oxalate

Mancilla

Caliva

D’Antonio

et al. 2009

J Raman Spectroscopy

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The three known hydrates of manganese(II) oxalate, α-MnC 2 O 4 · 2H 2 O, γ -MnC 2 O 4 · 2H 2 O and MnC 2 O 4 · 3H 2 O were synthesized by known procedures and characterized by X-ray powder diffractometry. Their infrared (IR) and Raman spectra were recorded and discussed on the basis of its structural peculiarities allowing to establish some interesting relations between them and with other, previously investigated, oxalate complexes. The IR spectra of partially deuterated samples of α-MnC 2 O 4 · 2H 2 O were also discussed, reinforcing some of the performed assignments.

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Lindbergite, a new Mn oxalate dihydrate from Boca Rica mine, Galiléia, Minas Gerais, Brazil, and other occurrences

Cited by 25 publications

References 3 publications

The discovery of new mineral species and type minerals from Brazil

The discovery of new mineral species and type minerals from Brazil

Oxalate Biominerals

Vibrational spectroscopic investigation of the hydrates of manganese(II) oxalate

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