• Jeffreyite Mineral Data

    webmineral.com/data/Jeffreyite.shtml PE Jeffreyite = 3.89 barns/electron U=PE Jeffreyite x rElectron Density= 11.64 barns/cc. Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jeffreyite is Not Radioactive
  • What does jeffreyite mean? - Definitions.net

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

    www.yourdictionary.com/jeffreyite jeffreyite definition: Noun 1. (mineralogy) An orthorhombic-disphenoidal colorless mineral containing aluminum, beryllium, calcium, hydrogen, oxygen, silicon, and sodium.Origin Jeffrey +‎ -ite...
  • Jeffreyite: Mineral information, data and localities.

    zh.mindat.org/min-2086.html Jeffreyite mineral data, information about Jeffreyite, its properties and worldwide locations.
  • Jeffreyite - Photo Gallery

    www.mindat.org/gallery.php A group of jeffreyite crystals ~1 mm across, probably the only undamaged group in existence. Part of the small amount found in 1981, from which the holotype specimen was taken. There was only a single find of the mineral and it is exceedingly rare. Crystals show only two forms: the dominant {001} pinacoid and very minor {110} prism.
  • jeffreyite - Wiktionary

    en.wiktionary.org/wiki/jeffreyite jeffreyite ( mineralogy ) An orthorhombic-disphenoidal colorless mineral containing aluminum , beryllium , calcium , hydrogen , oxygen , silicon , and sodium . References [ edit ]
  • Je®reyite (Ca Na)2(Be Al)Si2(O OH)7

    www.handbookofmineralogy.com/pdfs/jeffreyite.pdf Je®reyite (Ca;Na)2(Be;Al)Si2(O;OH)7 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Orthorhombic. Point Group: 222: As thin micaceous pseudotetragonal plates, to 1.2 mm, composed of f001g and f110g.
  • Jeffreyite from Jeffrey Mine ("Johns-Manville Mine ...

    www.mindat.org/locentry-70298.html Click here to view Jeffreyite data: Locality Data: Click here to view Jeffrey Mine ("Johns-Manville Mine"), Asbestos, Les Sources RCM, Estrie, Québec, Canada . Mineral and/or Locality . Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
  • Jeffrey Mine AsbestosJonathan's Mineral Exchange

    jonathansmineralexchange.com/jeffrey-quarry It is also the type locality of the rare minerals Spertiniite and Jeffreyite, both collected by Fracesco Spertini, Jeffrey mine geologist and main force behind the fame of Jeffrey mineralogy and mineral collecting. While Spertini built one of the most complete and richest collections of Jeffrey mine minerals he also encouraged many employees to ...
  • Melilite - Wikipedia

    en.wikipedia.org/wiki/Melilite Melilite refers to a mineral of the melilite group.Minerals of the group are solid solutions of several endmembers, the most important of which are gehlenite and åkermanite.A generalized formula for common melilite is (Ca,Na) 2 (Al,Mg,Fe 2+)[(Al,Si)Si O 7].Discovered in 1793 near Rome, it has a yellowish, greenish-brown color.