• Ecdemite: Mineral information, data and localities.

    www.mindat.org/min-1363.html the study of Perchiazzi et al. (2019, in press) shows ecdemite to be based on litharge-like defective layers. The layers formula is {Pb 2 [Pb 4 O](AsO 3) 2} 4+.
  • Ecdemite Mineral Data

    webmineral.com/data/Ecdemite.shtml Ecdemite Crystallography: Axial Ratios: a:c = 1:2.37222 : Cell Dimensions: a = 10.8, c = 25.62, Z = 8; V = 2,988.32 Den(Calc)= 7.32 : Crystal System:
  • Ecdemite | Definition of Ecdemite by Merriam-Webster

    www.merriam-webster.com/dictionary/ecdemite Ecdemite definition is - a yellow or green lead arsenate and chloride of uncertain composition occurring in crystals, masses, and crusts.
  • Ecdemite | Article about ecdemite by The Free Dictionary

    encyclopedia2.thefreedictionary.com/ecdemite Looking for ecdemite? Find out information about ecdemite. Pb6 As2O7Cl4 A greenish-yellow to yellow, tetragonal mineral consisting of an oxychloride of lead and arsenic; occurs as coatings of small tabular crystals... Explanation of ecdemite
  • Ecdemite - Mindat.org

    www.mindat.org/gm/1363 Ecdemite is a very rare lead, arsenic halide, and this rich and showy old-time combination specimen is from the famous type locality of Långban. The small iron-manganese Harstigen Mine operated from 1847-1853 and 1887-1889. A matrix rich in pink to rose-red, gemmy rhodonite surrounds a fan of tan, radiating, highly lustrous, ecdemite blades to ...
  • Ecdemite Mineral Data

    webmin.mindat.org/data/Ecdemite.shtml General Ecdemite Information : Chemical Formula: Pb6As+++2O7Cl4 : Composition: Molecular Weight = 1,646.85 gm Arsenic 9.10 % As 12.01 % As 2 O 3: Lead 75.49 % Pb 81.32 % PbO: Chlorine 8.61 % Cl 8.61 % Cl - % Cl -1.94 % -O=Cl 2 : Oxygen 6.80 % O: 100.00 % 100.00 % = TOTAL OXIDE
  • Ecdemic - definition of ecdemic by The Free Dictionary

    www.thefreedictionary.com/ecdemic Adj. 1. ecdemic - of or relating to a disease that originates outside the locality in which it occurs
  • Crystal-chemical study of ecdemite from Harstigen, a new ...

    pubs.geoscienceworld.org/.../crystal-chemical-study-of-ecdemite-from-harstigen Ecdemite from Harstigen, Värmland, Central Sweden, was studied through Raman and FTIR spectroscopy, electron-microprobe techniques, synchrotron powder and single-crystal diffraction. The ideal mineral formula proposed by Palache, Pb 6 Cl 4 As 2 O 7, is confirmed.
  • EJM - Heliophyllite: a discredited mineral species ...

    ejm.copernicus.org/articles/32/265/2020 Ecdemite is a member of the layered lead oxyhalide group, generally referred to as Aurivillius phases (Aurivillius, 1982, 1983), and its crystal structure is made up of a 1:1 sequence of regularly alternating defective litharge-like layers (Boher et al., 1985), which also host As cations, and Cl layers. For a comprehensive description of this ...
  • Urban Dictionary: Edomite

    www.urbandictionary.com/define.php A descendant of Esau, who was born red and hairy. Someone who The Most High hates as stated in Malachi 1:3 and Romans 9:13. Also means wasted-away. So-called Caucasians are the Edomites today.