Rocks, Minerals, and Gems
Cathodoluminescence (CL) microscopy reveals the real structure of solids based on a crystal's intrinsic properties and trace-element chemistry. Although CL is useful for identifying minerals (and their distribution), researchers more frequently employ this technique to reveal the typomorphic properties and features of minerals that characterize the conditions of formation and alteration to reconstruct geological processes.
The table below shows various minerals that may be examined using CL. Note that iron minerals and iron-rich phases are generally non-luminescent.
| Class | Examples |
|---|---|
| Elements | Diamond |
| Sulfides | Sphalerite |
| Oxides | Corundum, cassiterite, periclase |
| Halides | Fluorite, halite |
| Sulfates | Anhydrite, alunite |
| Phosphates | Apatite |
| Carbonates | Calcite, aragonite, dolomite, magnesite |
| Silicates | Feldspar, quartz, zircon, kaolinite |
Webinars
Immerse yourself in the world of scientific discovery—explore striking microscopy images that reveal the unseen, alongside videos and tutorials showcasing the cathodoluminescence technology in action.
Webinars
Immerse yourself in the world of scientific discovery—explore striking microscopy images that reveal the unseen, alongside videos and tutorials showcasing the cathodoluminescence technology in action.

