Field Portable Spectrometers for Mineral Identification and Analysis in Mining Exploration

SPECTRAL EVOLUTION’s field portable, battery-operated oreXpress and SR-6500 ultra-high resolution spectrometers are designed for mineral identification in mining exploration, as well as the quantification of metallurgical and mineralogical properties during production and processing. The oreXpress provides a quick payback with faster, more accurate mineral identification in exploration for gold, silver, diamonds, iron, nickel, copper, uranium, aluminum, shack, or in the lab, and provide:

  • Rapid data/spectra collection in the field – allowing you to take more scans in less time
  • High resolution in a field instrument
  • High signal-to-noise ratio for improved reflectance values
  • Fast start-up and use with no optimization step required between scans
  • Sturdy metal construction with thick walls to handle any field conditions, including high ambient temperatures
  • Reliable operation with no moving optics and a robust fiber optic cable with quick-disconnect
  • A rugged and reliable mineral contact probe for single click field measurements that easily fits in chip trays

Using our portable UV/VIS/NIR reflectance geological spectrometer, you can identify:

  • Al(OH) group minerals
  • Sulphates
  • Si(OH) group minerals
  • Fe(OH) group minerals
  • Mg(OH) group minerals
  • Carbonate group minerals
  • Selected OH-bearing silicates
  • Selected zeolites
  • Selected rare earth element (REE)-bearing minerals
  • Selected massive sulphides

oreXpress spectrometers provide a number of unique, in-field benefits, including:

  • Full UV/VIS/NIR spectral range of 350-2500nm
  • Fast scanning and ease-of-use – one touch operation, auto- optimization on every scan
  • Portable, lightweight unit with optional GETAC PS336 handheld PDA – easy for one person to use
  • GETAC becomes your field notebook – record audio notes, add your GPS position, take pictures of your samples, save it all and tag it to your scan
  • Rechargeable lithium-ion batteries- lightweight, four hour operating life
  • Immediate start-up – no warm up – start taking readings immediately to take advantage of daylight and weather
  • DARWin SP data acquisition software collects your critical data, saves in ASCII files – no post-processing necessary – use with SpecMIN, GRAMS, TSG and other 3rd party software

Field Portable Spectrometer for Mining

  • oreXpress Spectrometer

    • Ideal for field measurements on outcrops or mapping open pits, hand sample analysis, chip trays
    • Also, ideal for core logging in logging shacks
  • The oreXpress spectrometer is well-suited for core logging where it can increase your productivity by taking more scans in less time. For core shack use, we also offer a choice of field carts: a collapsible field cart or a lightweight plastic tall field cart with three shelves.

  • SPECTRAL EVOLUTION oreXpress Spectrometers are ideally suited for mining exploration, mineral identification, and mining production. These spectrometers cover the UV/VIS/NIR spectra using three photodiode arrays with no moving parts. This makes them supremely reliable in the field. oreXpress spectrometers can collect spectra in as little as 100 milliseconds. The instrument control and data handling DARWin SP Data Acquisition Module included with each unit provides full featured software and is compatible with a wide range of 3rd party analytical software, including: SpecMIN, GRAMS, The Spectral Geologist (TSG), and others.

Mining Applications:

Works with:

  • SpecMIN
  • GRAMS
  • TSG

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EZ-ID Software

Our oreXpress spectrometers are available with EZ-ID software that provides:

  • Fast and accurate identification of an unknown mineral to a known library sample
  • Easy-to-use, just collect your scan and see the results in real time
  • Simple, consistent user-interface
  • Pattern matching algorithms in interactive mode that can be used with SpecMIN, USGS, GeoSPEC and other libraries for mineral identification
  • Software provides a weighted score for best matches
  • Include or exclude spectral regions of interest for optimal results and display results and scores in multiple columns in different combinations for comparison and unmixing
  • Scalars that provide additional information on alteration
  • The ability to create your own library of known samples