Zobrazeno 1 - 10
of 37
pro vyhledávání: '"François Permingeat"'
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 99:274-286
The presence of frequently monocristalline ferrisicklerite nodules in the pegmatite veins of Sidi Bou Othmane (Jebilet) have induced to begin a detailed study of this little known species and to examine the triphylite group in its whole. Orthorhombic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d285d7afb093631e3450072e7adde094
https://doi.org/10.3406/bulmi.1976.7081
https://doi.org/10.3406/bulmi.1976.7081
Autor:
Giovanna Vezzalini, François Permingeat, Simona Quartieri, François Pillard, Célestine Baudracco-Gritti, Romano Rinaldi
Publikováno v:
Scopus-Elsevier
The detailed study of a mineral pertaining to the "De Launay collection" (B.R.G.M., Orléans) under the wrong denomination of "wolframite from Tifernine (Morocco)", showed it to be a non plumboan wakefieldite-(Ce). This is the second occurrence of wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3c976b0af876a0b75e8dc5da45d7389
https://doi.org/10.3406/bulmi.1987.8010
https://doi.org/10.3406/bulmi.1987.8010
Publikováno v:
Bulletin de Minéralogie. 105:327-332
Phaunouxite is triclinic P[-1] with a = 12.563(7), b = 12.181(6), c = 6.205(4) Å, α = 88.94(3), ß = 91.67(3), γ = 113.44(4)°, Z = 2. The strongest lines in the X-ray powder pattern are : 11.5(10) (100), 6.23(9) ([-2]10), 5.42(8) (011, 101, 0[-1]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2306b256a05d97e49fde4d71a129a274
https://doi.org/10.3406/bulmi.1982.7624
https://doi.org/10.3406/bulmi.1982.7624
Publikováno v:
Bulletin de Minéralogie. 103:122-128
Triclinic, P[-1], a = 8.440 (8.459), b = 7.608 (7.613), c = 6.958 (6.968) Å, α = 82.32° (82.21°), β = 98.30° (98.25°), γ = 95.53° (95.86°), V = 436.8 (438.6)ų, Z = 2. Catti et al. (1980) describe its structure. The strongest lines in pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a6453f0b90f6ea89e03004acc371608
https://doi.org/10.3406/bulmi.1980.7384
https://doi.org/10.3406/bulmi.1980.7384
Publikováno v:
Bulletin de Minéralogie. 105:321-326
The Rochefort-en-Terre dufrénite, described by Lacroix (1910), is remarkable for its high Na content which justifies the naming of a new mineral species : natrodufrénite (approved by the IMA Commission). This mineral has been found in a limonitic o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9215fe9926ab479e8b2b0ca2e6266d71
https://doi.org/10.3406/bulmi.1982.7623
https://doi.org/10.3406/bulmi.1982.7623
Publikováno v:
Bulletin de Minéralogie. 104:681-685
The study of the gossan from Ruffiac, Morbihan (Kosakevitch et al., 1979) afforded the recognition of a rare mineral species, wardite NaAl₃(OH)₄(PO₄)₂ • 2 H₂O. The optical and crystallographic properties are established and an electron mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95d56c2d74932742396158bc69e7723d
https://doi.org/10.3406/bulmi.1981.7556
https://doi.org/10.3406/bulmi.1981.7556
Publikováno v:
Bulletin de Minéralogie. 104:785-792
A mineral found at Rochefort-en-Terre (Morbihan) and formerly identified as cacoxenite is indeed an aluminiferous cyrilovite. A historial review of wardites (without Ca) and cyrilovites is given. All the different mineralogical properties compared wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f8a1110dcfc302c9a40d2605ad842d
https://doi.org/10.3406/bulmi.1981.7525
https://doi.org/10.3406/bulmi.1981.7525
Autor:
François Permingeat, Claude Guillemin
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 75:471-489
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26af14b8e8a78e22460609049575174c
https://doi.org/10.3406/bulmi.1952.4792
https://doi.org/10.3406/bulmi.1952.4792
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 84:96-105
La nomenclature minéralogique devenant de plus en plus complexe (il existe 12 000 noms alors que moins de 5 000 suffiraient), la Commission des Nouveaux Minéraux et des Noms de Minéraux de l'Association Internationale de Minéralogie a pris d'impo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2325872e7d435826fe14602fd035a68e
https://doi.org/10.3406/bulmi.1961.5454
https://doi.org/10.3406/bulmi.1961.5454
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 92:420-434
Hexagonal, isotype of mixite a = 13.55 ± 0.05 Å, c = 5.87 ± 0.02 Å, Z = 2. The strongest X-ray lines (68 observed, 36 calculated) are : 11.73 (10), 2.938 (8), 2.451 (8), 4.43 (7), 3.54 (7), 2.692 (6), 2.558 (6). Very thin acicular crystals green-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::491bc350c8d41f1ce46618d02b397979
https://doi.org/10.3406/bulmi.1969.6392
https://doi.org/10.3406/bulmi.1969.6392