Roggianite: revised chemical formula and zeolitic properties

Passaglia, Elio; Vezzalini, Giovanna

doi:10.1180/minmag.1988.052.365.06

Cited by 12 publications

(4 citation statements)

References 10 publications

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“…(Galli, 1980). Contains framework tetrahedrally coordinated Be (Passaglia and Vezzalini, 1988) and frameworkinterrupting (OH) groups (Giuseppetti et al, 1991).…”

Section: Roggianitementioning

confidence: 99%

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Coombs

Alberti²,

Armbruster³

et al. 1998

Mineral. mag.

Self Cite

234

120

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This report embodies recommendations on zeolite nomenclature approved by the International Mineralogical Association, Commission on New Minerals and Mineral Names. In a working definition of a zeolite mineral used for this review, structures containing an interrupted framework of tetrahedra are accepted where other zeolitic properties prevail, and complete substitution by elements other than Si and Al is allowed. Separate species are recognized in topologically distinctive compositional series in which different extra-framework cations are the most abundant in atomic proportions. To name these, the appropriate chemical symbol is attached by a hyphen to the series name as a suffix, except for the names harmotome, pollucite and wairakite in the phillipsite and analcime series. Differences in space-group symmetry and in order-disorder relationships in zeolites having the same topologically distinctive framework do not in general provide adequate grounds for recognition of separate species. Zeolite species are not to be distinguished solely on the ratio Si : Al except for heulandite (Si : Al < 4.0) and clinoptilolite (Si : Al ≥ 4.0). Dehydration, partial hydration, and overhydration are not sufficient grounds for the recognition of separate species of zeolites. Use of the term "ideal formula" should be avoided in referring to a simplified or averaged formula of a zeolite. Newly recognized species in compositional series are as follows: brewsterite-Sr, -Ba, chabazite-Ca, -Na, -K, clinoptilolite-K, -Na, -Ca, dachiardite-Ca, -Na, erionite-Na, -K, -Ca, faujasite-Na, -Ca, -Mg, ferrierite-Mg, -K, -Na, gmelinite-Na, -Ca, -K, heulandite-Ca, -Na, -K, -Sr, levyne-Ca, -Na, paulingite-K, -Ca, phillipsite-Na, -Ca, -K, and stilbite-Ca, -Na. Key references, type locality, origin of name, chemical data, IZA structure-type symbols, space-group symmetry, unit-cell dimensions, and comments on structure are listed for 13 compositional series, 82 accepted zeolite mineral species, and three of doubtful status. Herschelite, leonhardite, svetlozarite, and wellsite are discredited as mineral species names. Obsolete and discredited names are listed.Keywords: zeolite nomenclature, herschelite, leonhardite, svetlozarite, wellsite, brewsterite, chabazite, clinoptilolite, dachiardite, erionite, faujasite, ferrierite, gmelinite, heulandite, levyne, paulingite, phillipsite, stilbite. SOMMAIRECe rapport contient les recommandations à propos de la nomenclature des zéolites, telles qu'approuvées par l'Association minéralogique internationale, commission des nouveaux minéraux et des noms de minéraux. Dans la définition d'une zéolite retenue ici, les structures contenant une trame interrompue de tétraèdres sont acceptées dans les cas où les autres propriétés satisfont les critères de cette famille de minéraux. De plus, il peut y avoir remplacement complet de Si et Al par d'autres éléments. Des espèces distinctes font partie de séries de compositions dont l'agencement topologique est le même, le cation dominant ne faisant pas partie de la trame ...

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“…(Galli, 1980). Contains framework tetrahedrally coordinated Be (Passaglia and Vezzalini, 1988) and frameworkinterrupting (OH) groups (Giuseppetti et al, 1991).…”

Section: Roggianitementioning

confidence: 99%

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Coombs

Alberti²,

Armbruster³

et al. 1998

Mineral. mag.

Self Cite

234

120

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show abstract

“…Contains framework tetrahedrally coordinated Be (Passaglia and Vezzalini, 1988) and framework-interrupting (OH) groups (Giuseppetti et al, 1991).…”

Section: Pollucitementioning

confidence: 99%

Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Coombs

Alberti²,

Armbruster³

et al. 1998

ejm

Self Cite

141

101

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This report embodies recommendations on zeolite nomenclature approved by the International Mineralogical Association Commission on New Minerals and Mineral Names. In a working definition of a zeolite mineral used for this review, interrupted tetrahedral framework structures are accepted where other zeolitic properties prevail, and complete substitution by elements other than Si and Al is allowed. Separate species are recognized in topologically distinctive compositional series in which different extra-framework cations are the most abundant in atomic proportions. To name these, the appropriate chemical symbol is attached by a hyphen to the series name as a suffix except for the names harmotome, pollucite and wairakite in the phillipsite and analcime series. Differences in space-group symmetry and in order-disorder relationships in zeolites having the same topologically distinctive framework do not in general provide adequate grounds for recognition of separate species. Zeolite species are not to be distinguished solely on Si : Al ratio except for the heulandite (Si : Al < 4.0) and clinoptilolite (Si : Al ≥ 4.0) series. Dehydration, partial hydration, and over-hydration are not sufficient grounds for the recognition of separate species of zeolites. Use of the term "ideal formula" should be avoided in referring to a simplified or averaged formula of a zeolite. Newly recognized species in compositional series are as follows:

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“…Roggianit kommt als sekundäres Mineral in hydrothermal alterierten Gängen vor. Roggianit hat die allgemeine Formel Ca 15 (Si, Al, Be) 48 O 90 (OH) 16 •34H 2 O und sein Gerüst hat die Besonderheit, dass es BeO 4 -Tetraeder aufweist, der einzige Zeolith mit tetraedrisch koordinierten Be-Atomen in seiner Struktur [85, 86]. Das Mineral kommt in Form dünner Fasern vor.…”

Section: Kristallchemie Und Mineralogie Von Zeolithenunclassified

Asbest und andere gefährliche faserige Mineralien: Potenzielle Expositionswege und damit verbundene Gesundheitsrisiken

Berry

Belluso

Vigliaturo

et al. 2023

Kompass Pneumologie

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Es gibt 6 Arten länglicher Mineralpartikel (EMP), die bestimmten dimensionalen und morphologischen Kriterien entsprechen und als Asbest bekannt sind. Da Asbest für Gesundheitsprobleme wie die Asbestose und das maligne Mesotheliom verantwortlich ist, wurde er gut erforscht. Trotzdem kommt es weltweit weiterhin zu einer erheblichen Exposition, die möglicherweise 125 Millionen Menschen am Arbeitsplatz betrifft und jährlich Tausende von Todesfällen durch Exposition in Haushalten verursacht. Es gibt jedoch andere EMP, wie z.B. faserigen/asbestiformen Erionit, die als Karzinogene eingestuft sind und in Gebieten, in denen sie in lokale Baumaterialien eingebaut oder durch Erdbewegungen in die Umwelt freigesetzt wurden, mit Krebs in Verbindung gebracht wurden. Erionit ist ein stärkeres Karzinogen als Asbest, da es aber selten für kommerzielle Zwecke verwendet wird, wurden die Expositionswege weniger gut untersucht. Trotz der offensichtlichen Ähnlichkeiten zwischen Asbest und faserigem Erionit unterscheiden sich ihre Gesundheitsrisiken und Expositionspfade erheblich. Dieser Artikel untersucht die Gefahren, die von EMP ausgehen, mit besonderem Schwerpunkt auf Erionitfasern. Er umfasst eine Diskussion der globalen Standorte von Erionit und ähnlichen gefährlichen Mineralien, einen Vergleich der vielfältigen Expositionspfade für Asbest und faserigen Erionit, eine kurze Diskussion der verwirrenden Nomenklatur im Zusammenhang mit EMP und Überlegungen zur Zunahme globaler Mesotheliomfälle.

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Roggianite: revised chemical formula and zeolitic properties

Cited by 12 publications

References 10 publications

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Recommended nomenclature for zeolite minerals: report of the subcommittee on zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names

Asbest und andere gefährliche faserige Mineralien: Potenzielle Expositionswege und damit verbundene Gesundheitsrisiken

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