...} crystal (2 mm in its longest dimension) in a void of a sanidinite xenolith found in the In den Dellen pumice quarries, Niedermendig, Mendig, Laach Lake volcanic complex, Eifel Mountains, Rhineland-Palatinate, Germany. Ferriallanite-(La) is associated with sanidine, minor “biotite”, magnetite, nosean (grey...

... Christofschäferite-(Ce) (Ce,La,Ca) 4 Mn(Ti,Fe) 3 (Fe,Ti)(Si 2 O 7 ) 2 O 8 Wingertsberg, near Mendig, Laacher See area, Eifel Mountains, Rhineland-Palatinate, Germany Nikita V. Chukanov*, Sergey M. Aksenov, Ramiza K. Rastsvetaeva, Dmitriy I. Belakovskiy, Jö rg Göttlicher, Sergey N. Britvin and Konstantin V. Van...

... Volcanic Field (EEVF) of Germany being an outstanding target for such studies due to its sizeable eruptive volume (16 km 3 tephra or 6.3 km 3 dense rock equivalent; Schmincke 2007 and references cited therein), young age ( 14 C calibrated age 13 006 ± 9 years BP; 2 s uncertainty; Reinig et al. 2021...

...) Galloplumbogummite, IMA 2010-088. CNMNC Newsletter No. 9, August 2011, page 2537; Mineralogical Magazine , 75 , 2535–2540 Perrierite-(La) (La,Ce,Ca) 4 (Fe 2+ ,Mn)(Ti,Fe 3+ ,Al) 4 (Si 2 O 7 ) 2 O 8 Mendig, Laacher See area, Eifel Mountains, Rhineland-Palatinate (Rheinland-Pfalz), Germany Nikita...

.... CNMNC Newsletter 65; Mineralogical Magazine , 86 , https://doi.org/10.1180/mgm.2022.14 IMA No. 2021-088 Bolotinaite Bltn (Na 7 □ )(Al 6 Si 6 O 24 )F⋅4H 2 O In den Dellen (Zieglowski) pumice quarry, 1.5 km northeast of Mendig, Laach Lake (Laacher See) paleovolcano, Eifel region...

...Axel K. Schmitt Abstract High-spatial-resolution ( 230 Th)/( 238 U) disequilibrium dating reveals rapid zircon crystallization prior to the 12,900 yr B.P. Laacher See (Germany) phonolite eruption. Zircons from Lower Laacher See tephra (LLST) and syenitic subvolcanic nodules share REE and low U/Th...

... , IMA 2017-099. CNMNC Newsletter No. 42, April 2018, page 446; Mineralogical Magazine , 82 , 445–451. IMA No. 2017-100 Nollmotzite Mg[U 5+ (U 6+ O 2 ) 2 O 4 F 3 ]·4H 2 O Clara mine, Black Forest Mountains, Baden-Württemberg, Germany (48°22'59”N, 8°14'47”E) Jakub Plášil*, Anthony...

... of Mineralogy , 30 , 403–408. IMA No. 2017-107 Nöggerathite-(Ce) (Ce,Ca) 2 Zr 2 (Nb,Ti)(Ti,Nb) 2 Fe 2+ O 14 In den Dellen (Zieglowski) pumice quarry, 1.5 km NE of Mendig, Laach Lake (Laacher See) volcano, Eifel region, Rhineland-Palatinate, Germany How to cite: Pekov, I.V., Zubkova, N.V...

... Newsletter No. 28, December 2015, page 1863; Mineralogical Magazine , 79 , 1859–1864. IMA No. 2015-079 Ferri-obertiite NaNa 2 (Mg 3 Fe 3+ Ti)Si 8 O 22 O 2 Mount Rothenberg, near Bell/Mendig, Eifel volcanic complex, Rhineland-Palatinate, Germany (50.40°N, 7.23°E) Roberta Oberti...

... at Rothenberg basalt quarry in Eifel extrusive complex, Rothenberg Mountain near Mendig, Rhineland-Palatinate, Germany. It forms coarse dark brown to black vitreous prismatic (up to 1.5 mm) or platy (up to 4 × 4 × 0.2 mm) crystals in cavities (gas bubbles) of alkaline basalt. Associated minerals in cavities...

... in the in the collections of the Natural History Museum Vienna, Vienna, Austria, catalogue number N 8167 Ca(La,Ce,Th)(Fe 3+ ,Al)(Al,Fe 3+ )(Fe 2+ ,Mn,Ti,Mg)(SiO 4 )(Si 2 O 7 )O(OH) In den Dellen pumice quarries, Niedermendig, Mendig, Laach Lake volcanic complex, Eifel Mountainss, Rhineland-Palatinate, Germany Uwe...

...; European Journal of Mineralogy , 30 , 877–882. IMA No. 2018-034 Stefanweissite (Ca, REE ) 2 Zr 2 (Nb,Ti)(Ti,Nb) 2 Fe 2+ O 14 In den Dellen (Zieglowski) pumice quarry, 1.5 km NE of Mendig, Laach Lake (Laacher See) volcano, Eifel region, Rhineland-Palatinate, Germany Nikita V. Chukanov...

... (Zieglowski) pumice quarry, 1.5 km NE of Mendig, Laach Lake (Laacher See) palaeovolcano, Eifel region, Rhineland-Palatinate, Germany. The associated minerals are sanidine, nepheline, annite and zircon. Fig. 1. Bolotinaite grains. The field of view widths are 1.0 mm (a), 0.45 mm (b), 0.3 mm (c) and 0.4...

...). A new chevkinite-group member perrierite-(La) has been found in pumice quarry In den Dellen near Mendig, Laacher See area, Eifel Mts., Rhineland-Palatinate (Rheinland-Pfalz), Germany. The mineral found in miarolitic cavities in sanidinite lava in association with sanidine, phlogopite, pyrophanite...

... Magazine , 82 , 1015–1021. IMA No. 2018-020 Stefanweissite (Ca, REE ) 2 Zr 2 (Nb,Ti)(Ti,Nb) 2 Fe 2+ O 14 In den Dellen (Zieglowski) pumice quarry, 1.5 km NE of Mendig, Laach Lake (Laacher See) volcano, Eifel region, Rhineland-Palatinate, Germany Nikita V. Chukanov*, Natalia V...

... in an alkali-rich ultramafic diatreme ( Hawthorne et al ., 1998 ). Ferri-obertiite was found in vesicles in pale beige silicate veins within a green-yellow scoria found from a basalt quarry at Rothenberg volcano near Bell/Mendig in the Eifel volcanic complex (Rhineland-Palatinate, Germany). The Rothenberg...

...-group mineral from the Eifel area, Germany. Novye dannye o mineralakh, 47, 33–42 (in English). A new mineral, christofschäferite-(Ce), was discovered at the famous outcrop Wingertsbergwand (Wingertsberg Mt.) of the Laacher See volcano near Mendig, Eifel Mountains, Rhineland-Palatinate (Rheinland...

... and OH dominance in Y site, has been discovered in an active pumice quarry In den Dellen near the city of Mendig, Laacher See area, Eifel volcanic region, Rheinland-Pfalz, Germany. The mineral was found in small miarolitic cavities in sanidinite in a late pneumatolytic association that includes...

... in the active pumice quarry “In den Dellen” (or “Zieglowski” quarry), 1.5 km NE of the city of Mendig in the area of the Laach Lake, Eifel volcanic region, Rheinland-Pfalz, Germany (coordinates: 50°23’52.71” N; 07°17’18.18”E). The fragment containing laachite has a distinctly zoned structure indicating possible...

... is (Ca, REE ) 2 Zr 2 (Nb,Ti)(Ti,Nb) 2 Fe 2+ O 14 . Stefanweissite occurs in the In den Dellen (Zieglowski) pumice quarry (50°23′40″N, 7°17′12″E), 1.5 km NE of Mendig, Laach Lake (Laacher See) volcano, Eifel region, Rhineland-Palatinate, Germany. It forms isolated flattened long-prismatic crystals...