Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Milan Kvacek"'
Publikováno v:
Bulletin de Mineralogie
Bulletin de Mineralogie, 1978, 101 (5), pp.557-560. ⟨10.3406/bulmi.1978.7227⟩
Bulletin de Mineralogie, 1978, 101 (5), pp.557-560. ⟨10.3406/bulmi.1978.7227⟩
Sabatierite, Cu6TlSe4, is orthorhombic (indexing of powder pattern) with a = 3.986 ; b = 5.624 ; c = 9.778 Å ; Z = 1 ; the calculated specific gravity is 6.78 g/cm3. The strongest lines in the powder pattern are : 3.987 (5), 3.089 (10), 2.706 (7), 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0967553e373097c2b34be3ee3e92263
https://doi.org/10.3406/bulmi.1978.7227
https://doi.org/10.3406/bulmi.1978.7227
Autor:
Milan Kvacek, Zdenek Johan
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 94:45-48
The new mineral hakite is cubic, isotype of tetrahedrite, with : a = 10.88 ± 0.01 Å ; Z = 8 ; Gcalc. = 6.3. The strongest lines in the X-ray powder pattern are : 3.140 (10) ; 2.9x0(7) ; 1.985 (7 ); 1.925(9) ; 1.639(8) Å. Microprobe analyse gave :
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::125a81f7b44f1c6e3eeb949ff0422c9b
https://doi.org/10.3406/bulmi.1971.6549
https://doi.org/10.3406/bulmi.1971.6549
Autor:
Milan Kvacek, Zdenek Johan
Publikováno v:
Bulletin de la Société française de Minéralogie et de Cristallographie. 94:529-533
Bukovite, Cu₃₊ₓ.Tl₂FeSe₄₋ₓ was found at the Bukov and Petrovice (Moravia) ore deposits and in the deposit of Predborice (Bohemia), Czechoslovakia. It is tetragonal, diffraction symbol 4/mmmI⁻⁻⁻, with a = 3.976 ; c = 13.70 Å ; c/a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53c303a787a042521d5659a6b0b45686
https://doi.org/10.3406/bulmi.1971.6618
https://doi.org/10.3406/bulmi.1971.6618
Publikováno v:
Périodiques Scientifiques en Édition Électronique.
Petrovicite is orthorhombic, Pnam or Pna2₁, a₀ = 16.176 ; b₀ = 14.684 ; c₀ = 4.331 Å, Z = 4 ; G[calc] = 7.707. The strongest lines in the powder pattern are : 3.621 (7) ; 3.546 (8) ; 3.186 (8) ; 3.124 (10) ; 2.961 (10) ; 2.720 (5) ; 2.262 (5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e803bba1e7d57abb6b926e7c21486bb
https://www.persee.fr/doc/bulmi_0037-9328_1976_num_99_5_7086
https://www.persee.fr/doc/bulmi_0037-9328_1976_num_99_5_7086
Publikováno v:
Périodiques Scientifiques en Édition Électronique.
Krutaite was found in the Petrovice ore deposit, in Moravia, Czechoslovakia. Isometric, isostructural with pyrite, space group T[h]⁶-Pa3 ; a₀ = 6.056 Å ; Z = 4 ; ρ[calc.] = 6.53. The strongest lines of the X-ray powder pattern are : 3.023 (9) ;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c85d49f15932adda4271c1e25ac834b2
https://www.persee.fr/doc/bulmi_0037-9328_1972_num_95_4_6712
https://www.persee.fr/doc/bulmi_0037-9328_1972_num_95_4_6712
Publikováno v:
Périodiques Scientifiques en Édition Électronique.
Fischesserite, Ag₃AuSe₂ was found in carbonate veins at Predborice, Bohemia, Czechoslovakia, associated with naumannite, clausthalite, berzelianite, gold and other selenides. Isometric, isostructural with petzite ; space group O⁸-I4₁3₂ ; a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934eef65ac5959a4519a73710b35ad29
https://www.persee.fr/doc/bulmi_0037-9328_1971_num_94_4_6592
https://www.persee.fr/doc/bulmi_0037-9328_1971_num_94_4_6592
Publikováno v:
Périodiques Scientifiques en Édition Électronique.
Permingeatite, Cu₃SbSe₄, a new selenide of the luzonite-germanite group was found in Predborice, Bohemia, Czechoslovakia. Tetragonal, D¹¹/2d-I[-4]2 m, with a = 5.63, c = 11.23 Å, c/a = 1.994, Z = 2, dₓ = 5.82. The strongest lines in the powd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d64485f524bec1735f3849cd6096700b
https://www.persee.fr/doc/bulmi_0037-9328_1971_num_94_2_6572
https://www.persee.fr/doc/bulmi_0037-9328_1971_num_94_2_6572