Nevada Bureau of Mines and Geology

Analytical Laboratories


Standard Reference Materials

revised: 01-Feb-2007

There are several reference materials (SRMs) available at the Nevada Bureau of Mines and Geology. These SRM’s are available in 300g bottles @ $50.00 each and 30g bags @ $7.00 each. If you purchase more than 10 bottles you will receive a 10% discount. These prices do not include shipping and handling. For information about availability and shipping contact the Publication Sales offices at (775) 682-8766 or by e-mail: cstock@unr.edu.  For more information about each SRM see the Nevada Geology articles: The NBMG Standard Reference Material Project (Spring 1991) and The NBMG Standard Reference Material Project (Winter 1989). 

NBM-1a: Paradise Peak, andesite-hosted Au-Ag background
  NBM-1a:     Au: 3.0 ppb, Ag: <100 ppb
NBM-2a: Jerritt Canyon, carbonaceous Au-Ag background and ore
  NBM-2a:     Au: 5.0 ppb, Ag: 200 ppb
NBM-3b: Round Mountain, rhyolite-hosted Au-Ag background and ore
  NBM-3b:     Au: 2.972 opt, Ag: 1.71 opt
NBM-4a Mesquite Mine, metasediment-hosted Au-Ag background and ore
  NBM-4a:     Au: 75 ppb, Ag: <300 ppb
NBM-5b*: Boss Mine, carbonate-hosted, hydrothermal Au-Pt-Pd ore
  NBM-5b:     Au: 1074 ppb, Pt: 302 ppb, Pd: 874 ppb
NBM-6a, 6b*: Stillwater Mine, mafic intrusive-hosted Pt-Pd background and ore
  NBM-6a:     Au: 12 ppb, Pt: 122 ppb, Pd: 450 ppb
  NBM-6b:     Au: 0.024 opt, Pt: 0.334 opt, Pd: 1.000 opt

*These are preliminary data.
ppb = parts per billion, opt = troy ounce(s) per short ton


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