The Spectral Geologist (TSG™)

For the mineralogical interpretation of VIS-NIR-SWIR+TIR reflectance spectra collected from rock samples, drill core, chips and powders

TSG digitally transforms geological samples into mineralogical information products.

TSG is the market-leading, industry standard software program for the interactive analysis, visualisation and mineralogical interpretation of VIS-NIR-SWIR+TIR hyperspectral reflectance data collected from geological samples.

TSG generates value-adding, multi-parameter characterisation results for “infrared-active” minerals in samples, to support the multi-disciplinary endeavours of geoscientists across the exploration-mining chain.

Qualitative and quantitative mineral results generated in TSG improve geologists’ logging, mapping and modelling efficiency, productivity and knowledge-base, leading to actionable insights and informed decision-making.

TSG works directly with hyperspectral data collected from drill core, chips and field samples acquired by:

  • Compact and portable hand-held infrared spectrometers, including: Malvern Panalytical ASD’s TerraSpec® and Halo, Spectral Evolution’s oreXpress, the Agilent 4300 FTIR spectrometer and the ARCoptix FTIR spectrometers.
  • HyLogger systems, the CSIRO-developed automated imaging and hyperspectral core logging systems, located in each Australian Geological Survey, commercially available for international deployment by Corescan Pty Ltd.
  • Hyperspectral imaging systems: Corescan HCI3 data, one tray at a time given the large file sizes. Ideal for inspecting the spectra of targeted samples.

TSG is developed by and marketed under license from the Commonwealth Scientific Industrial Research Organisation (CSIRO), Australia’s national research agency. TSG is a trademark of the CSIRO.

Spectral Geoscience Pty Ltd is a CSIRO authorised sales affiliate for TSG.

Purchase Online and Download TSG

TSG™ purchased via the secure CSIRO sales portal link will entitle users to support and discounted training from Spectral Geoscience.

Via Purchase Order

Email a request or purchase order to
Spectral Geoscience. Digital activation codes will be emailed directly.
Quotes/invoices in USD available on request.

Time-block licences provide affordable, mobile and flexible options for TSG users

TSG’s subscription licensing system

  • TSG’s subscription licensing system works with an online licence server.
  • Access is available 24 hours a day anywhere in the world.
  • Affordable and flexible time-block licence periods range from 1 week to 3 years.
  • TSG can be up and running in minutes!
  • Your TSG licence can be loaded on several computers and activated/deactivated as needed giving you mobility and flexibility to access TSG when and where it is needed. Only one installation can be active at a time.
  • Educational discounts are available for verified university students.
  • There are no annual maintenance contracts or fees.
  • No hardware/software dongles.
  • No delivery fees.

TSG Licence Period and Pricing

Prices in Australian Dollars ($AUD)
(+10% GST for Australian purchases)
Prices in USD available on request
3 years$5,445
2 years$3,993
1 year$2,178
90 days$599
30 days$203
7 days$121

How To Proceed

  1. Register and download the free TSG Base (Viewer) or purchase TSG with Premium time hereYour web browser will open on TSG’s online store.
  2. After registration, the licence and activation codes and a download link for the software are emailed to you directly.
  3. After installation, open TSG, select Help, Licence, then ‘Activate’ the licence.

Subsequent licences can be purchased from within TSG (Help>Licence>Purchase time) or via purchase order. 

If you have two licence codes, one for TSG with Premium time and one for TSG Viewer, you can use the ‘Switch’ button in the Licence window to switch between licences.

Download, install and explore TSG Base (Viewer) for FREE

  • TSG software performs as a FREE Viewer until a time block licence is purchased.
  • TSG reverts to the FREE Viewer after a time block licence expires.
  • Subsequent TSG time block licences can be purchased.
  • Share TSG results between colleagues with the TSG Viewer to enhance collaboration and communication.
  • Contact Spectral Geoscience for a FREE demonstration dataset in TSG8 format.

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Spectral Geoscience provide sales, support and training for TSG


We provide international support for TSG users via
phone, email or online meetings.


We provide onsite and online training for:
1. Introduction to infrared mineral spectroscopy
2. Workflow methods and operational use of handheld infrared spectrometers for efficient hyperspectral core logging and field mapping.
3. How to use TSG to maximise the mineralogical information from your spectra, integrate with ancillary data and generate mineralogical products (maps and logs).

TSG is used by companies around the world including:



More about TSG™

Identifying the mineralogy in drill core, chips, soils and grab samples is a primary objective for successful mineral exploration, mine planning and development, geometallurgical flow sheet design and environmental-remediation practices.

TSG supports geoscientists at each step in the exploration-mining value chain by providing rapid characterisation results of infrared-active mineralogy to generate actionable insights.

Complimentary datasets such as assays, lithology logs and down-hole geophysical results, can be imported to evaluate the spatial relationships with the spectro-mineralogical results generated in TSG.

TSG can process thousands of spectra on-the-fly and rapidly generate mineral information critical for the characterisation of the regolith, host rock and alteration associated with ore deposits.

TSG is designed for the interactive analysis and visualisation of infrared spectra, mineralogical results, associated imagery and ancillary data.

Users are provided with several analysis options for extracting mineral information from infrared spectra. These range from a first-pass automated interpretation using built-in algorithms to more sophisticated scalar-based tools for the experienced user.

TSG Version 8 contains:

    TSG version 8 replaces all earlier versions (e.g. TSG Pro, Core, HotCore and Enterprise) and bundles the previously separated functionality into one powerful package, TSG 8. There is now only one ‘TSG’ and the free ‘ TSG Viewer’.

    TSG8 includes NEW:

  • Algorithms for the automated interpretation of spectra (TSA+ for the SWIR and jCLST for the TIR).
  • Improved spectral libraries.
  • Enhancements to take full advantage of VNIR-SWIR+TIR data collected with HyLogger hyperspectral core logging systems.
Results generated from TSG can include:
  • Mineral identification (characterisation; presence vs absence)
    • First-pass reporting automatically generated using the built-in TSA (The Spectral Assistant) algorithm at the:
      • Group level (e.g. white mica),
      • Species level (e.g. muscovite) and
      • Element level (e.g. Fe, Si, Al etc) extracted from the theoretical formulas of the TSA generated mineralogy.
    • TSA generates up to 2 minerals in the VNIR, up to 4 minerals in the SWIR and up to 4 minerals in the TIR (MIR in development).
    • Extracted from scalars targeting mineral-specific diagnostic spectral reflectance features using either built-in scalars or tools to generate your own scalars.
  • Relative abundance / Semi-quantitative Mineralogy
    • TSA weighting factors generated on a per sample basis for Mineral 1, 2, 3 etc.
    • Extracted from scalars targeting mineral-specific diagnostic spectral reflectance features using either built-in scalars or tools to generate your own scalars
  • Crystallinity, infers the degree of structural order/disorder within a mineral’s lattice, relates to the conditions under which the minerals (e.g. white mica or kaolinite) formed.
  • Compositional changes within a mineral group (e.g. Al-Fe/Mg in white micas and Fe-Mg in chlorites).
  • Numeric and categorical results can be exported in .csv format for ready import and integration with ancillary datasets in all 3D mine planning and GIS software.
Products generated can include:
  • Down-hole, depth-registered logs of mineralogy and associated attributes (e.g. abundance, compositional substitution crystallinity).
    • Scatter plots and histograms saved as JPG, PNG, EMF and TIF for reports and graphical presentation of results.
    • Exported in the generic .csv file format as numeric or categorical variables for ready integration with ancillary data and 3D modelling in mine planning and visualisation software (e.g. Leapfrog, Datamine, Surpac, ArcGIS etc) or intimate analysis with geochemistry in ioGAS™.
    • Down-sampling available (e.g. turn HyLogger 10mm sampling frequency results into 1m composites).
  • Georeferenced surface mineral maps based on field, trench and channel sampling
    • Saved as JPG, PNG, EMF and TIF for reports and graphical presentation of results.
    • Exported in the generic .csv file format as numeric or categorical variables with coordinates for ready integration with ancillary data in GIS and 3D modelling, mine planning and visualisation software.
  • HyLogger imagery exported as automatically configured and labelled core trays (see example below) and mosaics of core trays per drill hole.  

TSG Software Description and Hardware Requirements

– -TSG (The Spectral Geologist) is a menu and icon-driven, 32-bit Windows program written in C on the Win32 API. It runs on 32- and 64-bit x86 Windows, versions 7 to 10. Although TSG is a 32-bit program, it runs better on 64-bit Windows than 32-bit. Windows-XP is no longer supported.

Aside from a few system controls and dialogs that Windows displays in the host PC’s language, TSG’s interface is in English. However it has been installed and used on non-English Windows PCs including Spanish and Chinese.
TSG has no particular hardware or software requirements. It has been used on x86 Windows PCs ranging from small AMD field notebooks to multiprocessor i7 desktop PCs. TSG is threaded and will take advantage of multiple processors if present.

TSG communicates with a USA-based licence server over the internet on ports 80 (HTTP) and 443 (HTTPS). Although it is possible to set up and use TSG on an isolated PC, intermittent internet access (at least) is highly recommended.

The recommended minimum hardware requirements are:
– 1.0 GHz or higher CPU
– 512 MB or higher RAM
– 600 MB or higher of free disk space
– Microsoft® Windows® 7 or higher
– 800 x 600 or higher graphics resolution 24-bit colour or better.

TSG 8 is not backward compatible

Once a dataset is opened in TSG 8, it can no longer be opened in a previous version of TSG.

TSG is a trademark of the Commonwealth Scientific Industrial Research Organisation (CSIRO).

contact us today


Suite 28, 7 Narabang Way,
Belrose, NSW, 2085