Hohenberg quarries, Berkum, Wachtberg, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Greenish black magnesio-fluoro-arfvedsonite grains (not analysed) in unidentified matrix. ID on label: Magnesio-arfvedsonite. Specimen needs analysis to determine exact species. Acquired from Edelsteinhaus Hess on eBay on 29 September 2015.
Dächelsberg, Niederbachem, Wachtberg, Rhein-Sieg-Kreis, Cologne, North Rhine-Westphalia, Germany
Greenish, globlar aggregates of calcit in a geode in basalt rock. The matrix rock also hosts some lustrous, black magnetite inclusons. Old find.
© Dr. Marcus Lueg 2016
Part of a geode lined with small brown aragonite needles and tabular brown calcite crystals up to 7 mm. Old find, ex G. Grude coll., Siegburg, Germany. Dated 1960's.
Part of a geode lined with a lawn of tiny brown siderite crystals, with some scattered, white phillipsite crystals.
Greenish Black Magnesio-Fluoro-Arfvedsonite. Photo with Canon Eos 600 D + Bellows + Rodenstock Rodagon 35 mm 1:4,0 reversed. Photo and collection Giovanni Scapin.
© 2024 Giovanni Scapin