 | | Report (issue) | | Crystal Data: Monoclinic. form {100}. Point Group: 2/m. Crystals elongated platy, to 0.3 mm. Dominant...colorless. Absorption: Z > Y > X. Cell Data: Space Group: C2/m. Z=2 a = 19.905(1) b = 7.098(1) c = 5.405(1)... β = 96.349(5)° X-ray Powder Pattern: Löhley quarry, Germany. 2.792 (100), 3.464 (76), 2.672 (54), 2...23 1.44 1.41 0.95 3.88 1.63 99.36 (1) Löhley quarry, Germany; average of 5 SEM-EDX analyses; corresponding...54Ti2.01Nb0.06Si4.06O16.23F1.77. Mineral Group: Lamprophyllite group. Occurrence: Occurs in miarolitic cavities |  | Zubkova, N. V., Chukanov, N. V., Pekov, I. V., Turchkova, A. G., Lykova, I. S., Schüller, W., Ternes, B., Pushcharovsky, D. Yu. (2016) Crystal chemistry of a Ba-dominant analogue of hydrodelhayelite and natural ion-exchange transformations in double- and triple-layer phyllosilicates in post-volcanic systems of the Eifel region, Germany. Mineralogy and Petrology, 110 (6) 885-893 doi:10.1007/s00710-016-0441-7 | Journal (article/letter/editorial) | | in post-volcanic systems of the Eifel region, Germany N. V. Zubkova 1 & N. V. Chukanov 2 & I. V. Pekov...hydrodelhayelite (BDAH) from Löhley (Eifel Mts., Rhineland-Palatinate, Germany) and Ba-enriched varieties...(Ferraris and Gula 2005) and the günterblassite group, respectively, have crystal structures and chemical...basalts of the Eifel volcanic region, Rhineland-Palatinate, Germany. In particular, unusual barium-rich...Straussenpesch 22, 53518 Adenau, Germany 4 Bahnhofstrasse 45, 56727 Mayen, Germany N.V. Zubkova et al. Table |  | Camara, F., Gatta, G. D., Belakovskiy, D., Smith, D. G. W., Tait, K. T. (2013) New Mineral Names. American Mineralogist, 98 (5) 1078-1083 doi:10.2138/am.2013.616 | Journal (article/letter/editorial) | | single-crystal X-ray diffraction data in the space group P1, and refined to R1 = 0.021 for 1484 reflections...diffractometer with MoKα radiation) in the space group R3 [a = 22.010(2), c = 9.238(1) Å, V = 3875.6(6)...hydrogensulphate ion. Other minerals that contain this group include mercallite [KHSO4], matteuccite [NaHSO4·H2O]...mine, Schapbach, Black Forest, Baden-Württemberg, Germany (co-type localities). At the Trentini mine (Veneto...was collected by Rolf Poeverlein (Traunstein, Germany) from a small dump of probably middle age, which |  | | Journal (article/letter/editorial) | | single-crystal X-ray diffraction data in the space group P1, and refined to R1 = 0.021 for 1484 reflections...diffractometer with MoKα radiation) in the space group R3 [a = 22.010(2), c = 9.238(1) Å, V = 3875.6(6)...hydrogensulphate ion. Other minerals that contain this group include mercallite [KHSO4], matteuccite [NaHSO4·H2O]...mine, Schapbach, Black Forest, Baden-Württemberg, Germany (co-type localities). At the Trentini mine (Veneto...was collected by Rolf Poeverlein (Traunstein, Germany) from a small dump of probably middle age, which |  | | Journal (article/letter/editorial) | | wadalite, hydrogarnets, and calcium members of humite group. Aklimaite occurs in a fracture and forms intergrown...Cl2, a new K, Na-ordered mineral of the eudialyte group from the Khibiny alkaline massif, Kola Peninsula...(third known potassium member of the eudialyte group) was discovered at the Rasvumchorr Mt., Khibiny...after the main minerals are: fibrous aegirine, lamprophyllite, lomonosovite, shcherbakovite, delhayelite...was solved by direct methods in acentric space group and refined to R = 0.039 for 1427 unique reflections |  | | Journal (issue) | | Schweiz CHF 10,50 Die neuen Mineralien aus der Vulkaneifel • Zur Entstehung von idiomorphen Quarzen • Dufrenit...Teil II 28 Die neuen Mineralfunde aus der Vulkaneifel 38 Neue Mineralien 49 Zur Entstehung idiomorpher...neuen Mineralfunde aus derVulkaneifel Dass die Vulkaneifel in der mineralogischen Wissenschaft immer noch...Variabilität und Komplexität von Mineralen der Vulkaneifel und verwandter Provenienzen, sowie ihre synthetischen...Entdeckungen von Sammlern und Liebhabern der Vulkaneifel-Mineralien wird hier berichtet. Besonders herauszuheben |  | | Journal (article/letter/editorial) | | PrePub Article The crystal chemistry of lamprophyllite-related minerals RAMIZA K. RASTSVETAEVA1,*...f Abstract: The crystal structures of the lamprophyllite-related minerals are based upon HOH modules...According to the unit-cell parameters and symmetry, lamprophyllite-related minerals can be subdivided into five...and its analogues, which differ from the lamprophyllite-group minerals sensu stricto in their symmetry...the HOH modules. The end-member formulae of lamprophyllite-related minerals and the position of schüllerite |  | | Journal (article/letter/editorial) | | alkali mafic rocks of the West Eifel Volcanic Field (Germany) Yi SUN* and Axel K. SCHMITT Institute of Earth...University, Im Neuenheimer Feld 236, 69120 Heidelberg, Germany *Corresponding author, e-mail: Yi.Sun@stud.uni-heidelberg...the West Eifel Volcanic Field (WEVF) in western Germany. It is often present as euhedral to skeletal-arborescent...Schweizerbart’sche Verlagsbuchhandlung, 70176 Stuttgart, Germany Downloaded from https://pubs.geoscienceworld.o...southern Italy, the East African Rift, and the Eifel (Germany), as well as in oceanic island settings (e.g., |
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Löhley, Üdersdorf, Daun, Vulkaneifel, Rhineland-Palatinate, Germany