An EZ-ID library sample of diopside, an indicator mineral
for kimberlites.
Kimberlite exploration with an oreXpress and EZ-ID
 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
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Kimberlites are a variety of ultramafic volcanic and sub-volcanic rock
and are the main source of diamonds worldwide. They occur as
clusters of pipes probably along major crustal fracture zones.  
Common alteration minerals that can be detected by spectroscopy
include biotite/phlogopite, Fe-amphibole, Fe, Mg chlorite,
serpentine, calcite, saponite and nontronite.

The primary indicator minerals for kimberlites are garnet, chromite,
ilmenite, Cr-diopside and olivine. Using an
oreXpress field
spectrometer with
EZ-ID and two spectral libraries, a geologist can
quickly identify an indicator mineral that may not be readily
identifiable by sight, by matching an unknown sample against a
known spectral library. With EZ-ID the geologist can select specific
spectral regions to fine-tune the matching and unmixing process for
a more precise ID. If the geologist wants to look at a particular
absorption feature, the geologist can highlight that or other features
and EZ-ID provides new matches.


The oreXpress geological spectrometer with EZ-ID delivers:
  • Full range NIR field spectrometer - 350-2500nm
  • High resolution/high sensitivity scanning in a lightweight field
    package
  • Rugged reliable design with all photodiode arrays - no moving
    optical parts
  • Contact probe and two lithium-ion batteries for a full day of fast
    scanning in the field

EZ-ID features:
  • Fast and accurate identification of an unknown mineral to a
    known spectral library sample
  • Simple, consistent user interface
  • USGS and SpecMIN libraries available
  • Weighted score for best matches
  • Include or exclude spectral regions of interest for optimal
    results
  • User-configurable batch processing and output to an Excel
    spreadsheet
  • Al data saved as ASCII files for immediate use with 3rd party
    software
SPECTRAL EVOLUTION CORPORATE LOGO - FIRST IN UV-VIS-NIR SPECTROMETER, SPECTRORADIOMETER AND SPECTROPHOTOMETER PRODUCTS
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems
An EZ-ID library sample of olivine, an indicator mineral
for kimberlites.