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Identify minerals in the field

The oreXpress™ spectrometer brings the capabilities of a full-range NIR instrument directly to field geologists. It streamlines mineral identification, making the process quicker and more reliable.

Beyond on-site measurements, the oreXpress is also well suited for detailed core-shack logging. In one documented case, using the oreXpress reduced core logging time dramatically—from six hours down to just two.

The oreXpress™ delivers fast, dependable mineral identification and analysis with the resolution professionals expect. It’s a proven, durable spectrometer trusted by hundreds of geologists around the world.

Spectral Evolution oreXpress
oreXpress 1

Specifications

Spectral Range

350-2500nm

Spectral Resolution

2.8nm (350-1000nm)

8nm@1500nm

6nm@2100nm

Spectral Sampling Bandwidth (nm)

Data output reported in 1nm increments

2151 channels reported

Si Detector(s)

512 element Si Array

(350-1000nm)

InGaAs Detectors (TE-cooled)

256 element extended wavelength array (1000-1900nm)

256 element extended wavelength array (1900-2500nm)

Dimensions (in/mm)

8.5in x 12in x 3.5in

215mm x 305mm x 89mm

Weight (lbs/kg)

7.3lbs (3.3kg)

Communications Interface

USB, Wireless Connection

Minimum Scan Speed

100 milliseconds

Wavelength Reproducibility (nm)

0.1nm

Wavelength Accuracy (nm)

±0.5 bandwidth

Battery

External Lithium Ion | 7.4V

Battery Operation

Minimum 5 hour operation

Key Applications for oreXpress

Mapping alteration zones / Vectoring to mineralization / Open-pit mapping / Analyzing outcrops, hand samples, and RC chips / Quickly analyzing drill core samples / Soil degradation, mapping, & monitoring

Speak to PAS for expert guidance about the Spectral Evolution oreXpress.

oreXpress features:

  • 350-2500 nm spectral range
  • 100% diode array optics with no moving parts
  • Removable/replaceable fiber optic cable
  • Rugged anodized aluminum construction
  • Auto exposure & auto dark shutter
  • Wireless connectivity
  • High signal-to-noise ratio for better reflectance values
  • Fast start-up and use, with no optimization step to start scanning or between scans
  • Collect target data with a single click
  • Lightweight lithium-ion battery for power in the field
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