chalk

Chalk

This page presents the Spectroscopic analysis of this pigment.
The pigment has been examined using XRF spectroscopy, Raman spectroscopy, FTIR spectroscopy, and Reflectance Spectroscopy. These complementary techniques provide valuable insights into the pigment’s composition and structure.
This page aims to show which analytical methods are most effective for identifying this pigment in artworks and historical materials. By comparing results across different techniques, it serves as a practical reference for Heritage Science, Conservation, and Pigment Analysis.

Opaque in water media, but nearly transparent in oil

Manufacturer / product code:  Kremer / 58000
Chemical description: natural calcium carbonate. This product is from France. Kremer PDF
Color: white
Color Index: PW18
More info: Pigments Through The Ages 


Raman Spectroscopy 532 nm – ElviRa Spectrometer for Art


Raman spectroscopy 830 nm

Pigments (powder, no binder)

 


 

Raman spectroscopy 1064 nm

Pigments (powder, no binder)


XRF spectroscopy

DOWNLOAD previous database from Pigments Checker V.3      DOWNLOAD paper: R. Larsen, N. Coluzzi, A. Cosentino “Free XRF Spectroscopy database of Pigments Checker” Intl Journal of Conservation Science.


Reflectance Spectroscopy (200-1000 nm) – GorgiasUV Spectrometer

Reflectance spectroscopy – Gorgias Spectrometer for Art

NIR Reflectance spectroscopy


FT-IR Spectroscopy (Non-invasive Diffuse Reflectance Probe)