Andradite
Garnet 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
Email:
info@spectralevolution.com


Copyright © 2012 Spectral Evolution, Inc
Identifying types of garnet in the field can be performed using an
oreXpress spectrometer with EZ-ID and the USGS and optional
SPECMin libraries. These two libraries contain known samples of
garnet minerals including:
  • almandine - four spectra
  • uvarovite - three spectra
  • pyrope - two spectra
  • andradite - six spectra
  • spessartine - four spectra
By matching the spectra of an unknown field sample against the
samples in the libraries, EZ-ID can provide a fast and easy initial
identification to create an accurate mineral map and help a geologist
decide on the most promising drilling locations. The oreXpress and
EZ-ID can also be used to identify mineral alteration in core and chip
samples after drilling.

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
  • EZ-ID mineral identification software matching your target
    samples against two libraries of more than 1600 spectra and
    600 minerals
  • 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

Amandine and pyrope absorption features: 500, 600, 700, and 1300nm
Uvarovite features: 400, 500, and 2300-2400nm
Andradite and grossular: 440 and 2200-2400nm
Spessartine: 500 and 1300nm
SPECTRAL EVOLUTION CORPORATE LOGO - FIRST IN UV-VIS-NIR SPECTROMETER, SPECTRORADIOMETER AND SPECTROPHOTOMETER PRODUCTS
 First in Full Range PDA Spectrometer, Spectroradiometer and Spectrophotometer Systems
Almandine sample from library
Grossular