naa a22 4500 510736440 CHVBK 20180411083011.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1134/S1075701513080023 doi (NATIONALLICENCE)springer-10.1134/S1075701513080023 Lahnsteinite, Zn4(SO4)(OH)6 · 3H2O, a new mineral from the Friedrichssegen Mine, Germany [Elektronische Daten] [N. Chukanov, R. Rastsvetaeva, S. Aksenov, I. Pekov, D. Belakovskiy, G. Blass, G. Möhn] A new mineral, lahnsteinite, has been found in the dump of the Friedrichssegen Mine, Bad Ems district, Rhineland-Palatinate (Rheinland-Pfalz), Germany. Lahnsteinite, occurring as colorless tabular crystals in the cavities of goethite, is associated with pyromorphite, hydrozincite, quartz, and native copper. The Mohs' hardness is 1.5; the cleavage is perfect parallel to (001). D calc = 2.995 g/cm3, D meas = 2.98(2) g/cm3. The IR spectrum is given. The new mineral is optically biaxial, negative, α = 1.568(2), β = 1.612(2), γ = 1.613(2), 2V meas = 18(3)°, 2V calc = 17°. The chemical composition (wt %, electron microprobe data; H2O was determined by gas chromatography of ignition products) is as follows: 3.87 FeO, 1.68 CuO, 57.85 ZnO, 15.83 SO3, 22.3 H2O, total is 101.53. The empirical formula is (Zn3.3Fe0.27Cu0.11)Σ3.91(S0.98O4)(OH)5 · 3H2.10O. The crystal structure has been studied on a single crystal. Lahnsteinite is triclinic, space group P1, a = 8.3125(6), b = 14.545(1), c = 18.504(2) Å, α = 89.71(1), β = 90.05(1), γ = 90.13(1)°, V = 2237.2(3) Å3, Z = 8. The strong reflections in the X-ray powder diffraction pattern [d, Å (I, %)] are: 9.30 (100), 4.175 (18), 3.476 (19), 3.290 (19), 2.723 (57), 2.624 (36), 2.503 (35), 1.574 (23). The mineral has been named after its type locality near the town of Lahnstein. The type specimen of lahnsteinite is deposited in the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, registration number 4252/1. Pleiades Publishing, Ltd., 2013 Chukanov N. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia aut Rastsvetaeva R. Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, 117333, Moscow, Russia aut Aksenov S. Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, 117333, Moscow, Russia aut Pekov I. Faculty of Geology, Moscow State University, 119899, Moscow, Russia aut Belakovskiy D. Fersman Mineralogical Museum, Russian Academy of Sciences, Leninsky pr. 18-2, 119071, Moscow, Russia aut Blass G. Merzbachstrasse 6, D-52249, Eschweiler, Germany aut Möhn G. Wittemannstrasse 5, 65527, Niedernhausen, Germany aut Geology of Ore Deposits Springer US; http://www.springer-ny.com 55/8(2013-12-01), 663-668 1075-7015 55:8<663 2013 55 11477 https://doi.org/10.1134/S1075701513080023 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1075701513080023 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chukanov N. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia aut NATIONALLICENCE 700 1- Rastsvetaeva R. Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, 117333, Moscow, Russia aut NATIONALLICENCE 700 1- Aksenov S. Institute of Crystallography, Russian Academy of Sciences, Leninsky pr. 59, 117333, Moscow, Russia aut NATIONALLICENCE 700 1- Pekov I. Faculty of Geology, Moscow State University, 119899, Moscow, Russia aut NATIONALLICENCE 700 1- Belakovskiy D. Fersman Mineralogical Museum, Russian Academy of Sciences, Leninsky pr. 18-2, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Blass G. Merzbachstrasse 6, D-52249, Eschweiler, Germany aut NATIONALLICENCE 700 1- Möhn G. Wittemannstrasse 5, 65527, Niedernhausen, Germany aut NATIONALLICENCE 773 0- Geology of Ore Deposits Springer US; http://www.springer-ny.com 55/8(2013-12-01), 663-668 1075-7015 55:8<663 2013 55 11477 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer