Searchable database of crystal structures published in American Mineralogist and related journals.

Description of analytical methods — Ocean Drilling Project Technical Note, Texas A&M University.

Thermal emission spectral library of over 2,000 minerals — NASA Jet Propulsion Laboratory.

Electron probe microanalysis facility — University of Oregon.

Interactive clickable periodic table of emission and absorption spectra — University of Oregon.

General construction instructions for scintillation probes — Geologynet PDF.

Authoritative source for powder diffraction data used in mineral identification worldwide.

Mineral spectroscopy data repository — California Institute of Technology.

Introduction to the polarizing microscope — University of Bristol Earth Sciences.

Comprehensive guide covering microscope types, operation, and applications — Florida State University.

Atomic and molecular spectra databases including NIST Handbook of Basic Atomic Spectroscopic Data. (URL updated to current NIST page.)

Guide to polarizing microscopes for geological thin-section work.

Introduction to XRD principles — United States Geological Survey.

Spectroscopy information service covering techniques, news, and resources — Wiley Publishing.

Arizona State University spectral library of over 150 rock-forming minerals.

University of Arizona Raman spectroscopy mineral database — the RRUFF Project.

Vis/IR field and laboratory spectrometers for mineral identification.

Microscopes — student, stereo, school and university lab equipment, Australia.

XRF instruments and components.

XRF and XRD spectrometers — Germany. (URL updated to current Bruker XRF product page.)

Electron probe microanalysers — the SX50 is widely used in geological laboratories worldwide.

Core testing and reservoir description instruments — USA.

Leading supplier of optics and optical components to science and industry for over 60 years.

Magnifying aids, microscope accessories and stereoscopes — USA.

Environment measuring instruments. (Original domain unavailable — updated to Hanna Instruments.)

General science laboratory supplies.

Sound card driver software for scintillation probes and gamma spectrometry.

Manufacturer of ICP/AAS equipment for the mining industry.

Manufacturer of a dedicated Raman spectrometer for gemstone identification.

Geotechnical equipment and supplies — USA.

Curved position-sensitive detector XRD systems for mineralogy and materials science.

Mineral powder diffraction data on CD and in print publications.

Manufacturer of PIMA IR field spectrometer for field identification of minerals.

Electron microscopes, mass spectrometers and analytical instruments.

Manufacturer of spectroscopy instruments including Raman, fluorescence and ICP systems.

Digital and instant cameras and imaging products.

UK manufacturer of XRF and other X-ray instruments.

Laboratory furnaces for geological sample preparation and fusion.

Manufacturer of high-quality microscopes and accessories for science and industry.

Precision lapping and polishing equipment for thin-section preparation — UK.

Manufacturer of microscopes — Russia.

Manufacturer of biological, stereo and polarising microscopes.

Automatic thin-sectioning equipment for petrographic laboratories.

Laboratory equipment for crystal growth, thin film deposition and materials research — USA.

Scientific imaging hardware, data acquisition and measurement systems.

Manufacturer of optical and digital microscopes for research and industry.

X-ray analytical instruments and a broad range of scientific supplies. (Noran Instruments now under Thermo Fisher Scientific.)

UV/Vis/IR spectrometers — miniature modular spectrophotometers for field and lab use.

Balances and scales for laboratory and industrial weighing.

Handheld and portable XRF spectrometers for field mineral analysis.

Manufacturer of research and industrial microscopes.

Precision optical filters for fluorescence, spectroscopy and imaging applications.

Petrographic and polarising microscopes — China.

XRF instruments, EDS/WDS detectors and analytical tools for geoscience — USA and UK.

XRF and XRD instruments — formerly Philips Analytical Instruments.

Manufacturer of microscope stages and accessories — UK and USA.

Manufacturer of biological and polarising microscopes — India.

X-ray analytical instruments for XRD, XRF and crystallography.

Sample preparation equipment for geochemical laboratories — crushers, grinders, splitters.

XRD/XRF spectrometers and analytical software — Australia.

XRF and ED-XRF spectrometers — China.

XRF and ICP spectrometers for elemental analysis in mining and geoscience.

Electron microscope laboratory supplies, consumables and microprobe mineral standards — USA.

Scientific instruments, reagents, consumables and services for analytical science.

Optical equipment, photonics and spectroscopy supplies. (Updated from thorlabs.hk to global site.)

Portable and laboratory Raman spectrometers for material identification.

UV lamps and UV illumination systems for fluorescence mineralogy and lab use.

Laboratory and field instruments for the petroleum industry — France.

Laboratory supplies, chemicals and equipment — Australia.

Petroleum laboratory services — USA. (URL updated from humble-inc.com to current Weatherford Labs domain.)

Manufacturer of precision microscopes, optics and accessories. (Updated from zeiss.de to global zeiss.com.)

Ore assaying and geochemical laboratory — Canada.

Ore assaying and geochemical laboratory — USA and Canada.

Global mineral testing, geochemistry and assaying services.

Minerals testing and assaying information — ALS Chemex.

Petrographic services and thin-section analysis — USA.

Mining and exploration using field spectrometers for mineral identification — Australia.

Mineral and petroleum testing, assaying and inspection services — Australia and New Zealand.

Petrographic thin-section preparation services — USA.

Ore assaying laboratory — Canada and USA.

XRF assaying standards, sample preparation equipment and certified reference materials.

Mineral testing and assaying — Canada.

Professional gem testing laboratory services.

Fission track analysis, mineral and metal identification — Australia.

Petroleum analysis laboratory services — Houston, USA.

Gem appraisal, certification and testing services — USA.

Thin-section preparation and petrological services — South America.

Petrographic thin-section preparation services — USA.

Development of certified reference samples and analytical methods — South Africa.

Certified assaying and geochemical reference standards — National Institute of Standards and Technology.

Petrographic services and thin-section analysis — Houston, Texas.

Geochemical certified reference materials and assaying standards — Australia.

Petrographic thin-section preparation services — USA.

Metallurgical and analytical testing services — Canada, Chile and worldwide.

Section preparation and petrographic services — USA.

Petrographic supplies and services including thin-section preparation — Canada.

Petroleum industry services — Houston, USA.