Spectral Evolution geological spectrometers are designed for field
use, including exploration for gold. With our
spectrometer, and EZ-ID mineral identification software, exploration
geologists have the field and core shack toolset necessary for an
excellent Return-On-Investment while improving the effectiveness
of drilling.

The oreXpress geological spectrometer can be used in field mapping
and exploration of many gold deposit types, including:
  • Paleoplacer deposits
  • Massive sulphide deposits
  • Hot spring deposits
  • Adularia/sericite epithermal deposits (low sulfidation)
  • Alunite/kaolinite epithermal deposits (high sulfidation)
  • Breccia pipe deposits
  • Porphyry gold deposits
  • Skarns
  • Orogenic deposits
  • Carbonate placement deposits
  • Greenstone belts

With our field spectrometers, geologists can scan and identify
common alteration minerals, for example:
  • Low sulfidation deposits - illite, kaolinite, chlorites,
    illite/smectite, buddingtonite, epidote, montmorillonite,
    zeolites, quartz, calcite, hematite
  • High sulfidation - alunite, opal, dickite, pyrophyllite, diaspore,
    zunyite, topaz, illite, kaolinite, chlorites, illite/smectite, epidote,
    quartz, montmorillonite, geothite, jarosite, hematite
  • Orogenic gold - muscovite, paragonite muscobite, roscoelite,
    illite, kaolinite, quartz, siderite, ankerite, calcite, dolomite,
    chlorites, carbonates

Every oreXpress includes our DARWin SP Data Acquisition software
and is available with
EZ-ID and the Custom Library Builder Module. EZ-
ID allows you to compare your target sample with a known library of
mineral spectra. EZ-ID comes with the USGS spectral library and is
available with the SpecMIN mineral library from
Spectral International.

EZ-ID features:
  • Fast and accurate identification of an unknown mineral to a
    known spectral library sample
  • Ease-of-use: take your scan using an oreXpress or oreXpress
    Platinum and see results in real-time
  • Simple, consistent user interface
  • USGS and SpecMIN libraries
  • Weighted score for best matches
  • Include or exclude spectral regions of interest for optimal
SPECTRAL EVOLUTION'S EZ-ID software has identified our target sample as
kaolinite using the USGS spectral library for reference. The shaded areas shown in
the scan allow  a geologist to concentrate on regions in the spectra of particular
Gold Exploration and Mineral Identification
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems
1 Canal Street  ◊  Unit B1
Lawrence, MA 01840  USA
Tel: 978 687-1833  ◊  Fax: 978 945-0372

Copyright © 2012 Spectral Evolution, Inc
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems
oreXpress field portable spectrometer for mineral identification
EZ-ID mineral identification software