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Gratonite is a rare lead sulfide mineral. It forms nice crystals that can be arranged into rosette-like clusters with projecting rhombohedral terminations. ...
www.galleries.com/minerals/sulfides/gratonit/gra... - 16k - Similar pages
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Click Here for Larger Gratonite Image in a New Browser Window Images: ... Comments: Crystal cluster of gratonite. The largest crystal is 2.5 mm across. ...
webmineral.com/data/Gratonite.shtml - 49k - Similar pages
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Crystal cluster of gratonite. The largest crystal is 2.5 mm across. Excelsior mine, Cerro de Pasco, Pasco dept., Peru.
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Gratonite mineral data, information about Gratonite, its properties and worldwide locations.
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This sample of gratonite is displayed in the Smithsonian Museum of Natural History. Gratonite is a sulfide mineral of lead and arsenic with the composition ...
hyperphysics.phy-astr.gsu.edu/hbase/minerals/gra... - 2k - Similar pages
http://hyperphysics.phy-astr.gsu.edu/hbase/minerals/gratonite.html
Gratonite. Pb9As4S15 c 2001-2005 Mineral Data Publishing, version 1. Crystal Data: Hexagonal. Point Group: 3m. Crystals, to 5 mm, prismatic by elongation ...
www.handbookofmineralogy.org/pdfs/gratonite.pdf - Similar pages
http://www.handbookofmineralogy.org/pdfs/gratonite.pdf
Fan Base Add a Favorite Become a Fan of this Member. Members gratonite is a Fan of (3). eddiebly · k6007 · Oxonian2001. Members that are a Fan of gratonite ...
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Jun 13, 2009 ... Gratonite is a lead-arsenic sulfide mineral, with the chemical composition Pb9As 4S15. Gratonite was discovered in 1939 at the Excelsior Mine ...
en.wikipedia.org/wiki/Gratonite - 18k - Similar pages
http://en.wikipedia.org/wiki/Gratonite
of gratonite; the deviation from parallelism is a result of the structural ... Stereographic projection of a gratonite crystal (open circles) with an ...
www.jstor.org/stable/30060265 - Similar pages
http://www.jstor.org/stable/30060265
It was on the outer fringes of this ore body (1400 level) that gratonite, ... Although it was here that the gratonite was most abundantly ...
www.minsocam.org/ammin/AM25/AM25_266.pdf - Similar pages
http://www.minsocam.org/ammin/AM25/AM25_266.pdf