burnt umber

Burnt umber

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.

A natural mixture of iron and manganese oxides and hydroxides. Used throughout history,

Manufacturer / product code:  Kremer / 40710
Chemical description: natural brown earth, containing manganese oxides, from Cyprus. KREMER PDF
Color: brown
Color Index: PBr8
More info: Pigments Through The Ages  Colourlex


Raman Spectroscopy 532 nm – ElviRa Spectrometer for Art


 Raman spectroscopy 785 nm

Pigments (powder, no binder)


Pigments with acrylic binder (Pigments Checker)


Pure pigments (no binder, just powder)

DOWNLOAD Free Raman Database

DOWNLOAD paper:   “Pigments Checker version 3.0, a handy set for conservation scientists: A free online Raman spectra database”

Burnt umber 40710 Raman Spectroscopy Pigments Checker

Raman spectroscopy 830 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



DOWNLOAD Free Reflectance Database

DOWNLOAD paper:  “FORS spec­tral data­base of his­tor­i­cal pig­ments in dif­fer­ent binders”

burnt umber

 


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