orpiment and indigo
Maghreb
19th Century
Source: Colini, C. (2022). Ink Recipes from the Islamic Era. In Session 2 – Integrating Sciences in Historical and Archaeological Research (pp. 173–186).
Recipe Details
Ingredients
orpiment, indigo
Preparation Steps
The manuscript identifies the colorant as being composed of orpiment and indigo, specifically found in a recipe for green ink termed 'līqa' on folio 17v (p. 178).
Original Recipe Text
The manuscript identifies the colorant as being composed of orpiment and indigo, specifically found in a recipe for green ink termed 'līqa' on folio 17v (p. 178).
Evidence
"the main components of the colour were identified as orpiment and indigo, which are the same ingredients mentioned in a recipe of a green ink (līqa) located in fol. 17v, on the opposite side of the more evident stain. (p. 178)"
Remarks
The pigments were found as traces left by fingertips in the margins and fore-edge of the pages, suggesting a user consulted the manuscript while preparing the ink (p. 178).
Scientific Analysis
Chemical CompositionAs2S3 (orpiment)
Analytical Techniques
Raman
XRF
FTIR
UV-NIR Reflectography
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
pigment
ColorGreen
RegionMaghreb
Approx. Year1850
Source Information
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