Frank de Wit's Photo Gallery
DeWit(ite)
Jas Roux, La Chapelle-en-Valgaudemar, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, FranceDe Wit with the freshly found type specimen of dewitite :)
Giesse(nite)
Turtschi, Giessen, Binn, Goms, Valais, SwitzerlandFor years now, I've been wanting to add "-nite" to the sign... ;)
Dr. Ludger Krahn
Dr. Ludger Krahn under a fluorite vein in the Grube Hohe Warte, Harz, Germany.The mineral lukrahnite is named after Dr. Krahn.
8L8-99TUnnamed Organometallic Se Phase C, H, Se (?)
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyField of View: 3 mm
(sorry for the bad picture ; was shot in 2005)
J86-M0KUnnamed Organometallic Se Phase C, H, Se (?)
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyField of View: 5 mm
Mindat.org Photo of the Day - 9th Jun 2016
TPH-55YUnnamed (NH4-Zn-Fe Chloride) (NH4)3(Zn,Fe)Cl5 , Kremersite (NH4,K)2[Fe3+Cl5(H2O)]
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyField of View: 5 cm
"Unnamed (NH4-Zn-Fe Chloride)" (green crystals near red kremersite), etc, immediately after extracting it from a vent ("fumarole") on the smoldering coaldump of the Anna coalmine.
Photo ca.5 cm wide
Kremersite specimen
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanySpecimen with Kremersite, Unnamed (NH4-Zn-Fe Chloride),
Unnamed (NH4-Mn Chloride-Fluoride(?)-Hydrate), and
Unnamed (NH4-Mn Chloride-Hydrate),
immediately after extracting it from a vent ("fumarole") on the smoldering coaldump of the Anna coalmine.
Specimen ca.15 cm wide
Measuring vent-temperature
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyMeasuring the temperature in the vent ("fumarole") of this image -> http://www.mindat.org/photo-736824.html
Mindat.org Photo of the Day - 27th Jan 2020
Vent with kremersite
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyVent ("fumarole") with kremersite,
Unnamed (NH4-Zn-Fe Chloride),
Unnamed (NH4-Mn Chloride-Fluoride(?)-Hydrate), and
Unnamed (NH4-Mn Chloride-Hydrate),
on the smouldering coal dump of the Anna coal mine.
Photo ca. 20 cm wide.
3CF-GWAUnnamed (NH4-Zn-Fe Chloride) (NH4)3(Zn,Fe)Cl5 , Unnamed (NH4-Mn Chloride-Fluoride(?)-Hydrate) (NH4), Mn, Cl, F(?), O, H
Anna mine, Alsdorf, Aachen, Cologne, North Rhine-Westphalia, GermanyField of View: 5 mm
Unnamed (NH4-Zn-Fe Chloride) (green)
Unnamed (NH4-Mn Chloride-Fluoride(?)-Hydrate) (yellow)
(both on specimens with kremersite)
(photo from 2010, sorry for the low quality)