Lepidolite sample matched with EZ-ID. Target in blue -
library sample in red
Lithium 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 pathfinder minerals in lithium exploration can be
performed using an
oreXpress spectrometer with EZ-ID and the
USGS and optional SPECMin libraries. These two libraries contain
known samples of more than 600 minerals and 1500 spectra.

Two of the pathfinder minerals for lithium are lepidolite and
spodumene. A sample can be identified as lepidolite with distinct
features at 580nm, 2190nm and 2340nm. A spodumene sample could
show absorption features at 550nm, 1980nm and 2320nm.

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
  • 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
Spodumene sample match using match regions to focus
on specific features