• Geigerite - Wikipedia

    en.wikipedia.org/wiki/Geigerite Geigerite is a mineral, a complex hydrous manganese arsenate with formula: Mn 5 (AsO 3 OH) 2 (AsO 4) 2 ·10H 2 O. It forms triclinic pinacoidal, vitreous, colorless to red to brown crystals. It has a Mohs hardness of 3 and a specific gravity of 3.05.. It was discovered in Grischun, Switzerland in 1989. It was named in honor of Thomas Geiger (1886–1976), Wiesendangen, Switzerland, who studied ...
  • Geigerite: Mineral information, data and localities.

    www.mindat.org/min-1669.html Named after Dr. Thomas Geiger (1920 - 1990), Swiss mineralogist and metallurgist in the machinery industry and specialist for the manganese ores and minerals of Falotta and Alp Parsettens to which he devoted his PhD thesis and a series of later studies.
  • Geigerite Mineral Data

    webmineral.com/data/Geigerite.shtml PE Geigerite = 26.95 barns/electron U=PE Geigerite x rElectron Density= 77.78 barns/cc. Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units) Geigerite is Not Radioactive : Geigerite Classification: Dana Class: 39.02.06.02 Hydrated Acid Phosphates, etc
  • What does geigerite mean? - Definitions.net

    www.definitions.net/definition/geigerite Definition of geigerite in the Definitions.net dictionary. Meaning of geigerite. What does geigerite mean? Information and translations of geigerite in the most comprehensive dictionary definitions resource on the web.
  • Geigerite dictionary definition | geigerite defined

    www.yourdictionary.com/geigerite geigerite definition: Noun 1. (mineralogy) A triclinic-pinacoidal mineral containing arsenic, hydrogen, manganese, and oxygen.Origin -ite...
  • geigerite - Wiktionary

    en.wiktionary.org/wiki/geigerite geigerite A triclinic-pinacoidal mineral containing arsenic, hydrogen, manganese, and oxygen. References “Geigerite ...
  • Geigerite Mn2+ (AsO OH) 5 4 2 3 2 - Handbook of Mineralogy

    www.handbookofmineralogy.com/pdfs/geigerite.pdf Geigerite Mn2+ 5 (AsO4)2(AsO3OH)2• 10H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Triclinic. Point Group: 1. Subhedral crystals, to 0.5 mm, platy on {010}, striated k [001]; in fibrous to fine-grained aggregates.
  • Geigerite, the Mn analogue of chudobaite: Its description ...

    www.minsocam.org/ammin/AM74/AM74_676.pdf The preparation of geigerite material for microprobe work was quite difficult because of its brittleness and per-fect cleavage. From preliminary qualitative determina-tions by an EDs probe on a scanning electron microscope (snvr laboratory, Geological Institute, Basel), it became obvious that geigerite was a manganese arsenic oxide mineral.
  • Steigerite: Mineral information, data and localities.

    www.mindat.org/min-3759.html 2 photos of Steigerite associated with Vanoxite: V 4+ 4 V 5+ 2 O 13 · 8H 2 O: 2 photos of Steigerite associated with Gypsum: CaSO 4 · 2H 2 O: 1 photo of Steigerite associated with Barnesite (Na,Ca)V 6 O 16 · 3H 2 O: 1 photo of Steigerite associated with Bokite (Al,Fe 3+) 1.3 (V 5+,V 4+,Fe 3+) 8 O 20 · 7.4H 2 O
  • Geigerite : definition of Geigerite and synonyms of ...

    dictionary.sensagent.com/Geigerite/en-en Geigerite has also been found in Mt. Nero Mine, [[Borghetto Di Vara]], La Spieza, Italy (Bella, R. 2000). Besides these three locations, geigerite has yet to be discovered anywhere else in the world. Structure. Geigerite’s crystal system is triclinic with perfect cleavage on the {010}. The [[Herman Mauggin symbol]] for geigerite is *1 and its ...