raw umber, K-40610 2016-10-17T18:29:17+00:00

Pigments Checker

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Used throughout history,  it has different earth tones depending on the amount of iron and manganese compounds.

Manufacturer / product code:  Kremer / 40610
Chemical description: natural mixture of iron and manganese oxides and hydroxides. Brown earth, from Cyprus. Kremer PDF
Color: brown
Color Index: PBr8
More info: Pigments Through The Ages  Colourlex

 Raman spectroscopy

DOWNLOAD Free Raman Database

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

Raw umber 40610 Raman Spectroscopy Pigments Checker

XRF spectroscopy

DOWNLOAD Free Online Database

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

Reflectance spectroscopy

DOWNLOAD Free Reflectance Database

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

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