parchment support
Portugal
12th Century
Source: Rita Castro, Adelaide Miranda and Maria João Melo. Interpreting lac dye in medieval written sources: new knowledge from the reconstruction of recipes relating to illuminations in Portuguese manuscripts. ATSR, 2015.
Recipe Details
Evidence
"Calcium carbonate was mainly found in Lorvão and Santa Cruz scriptoria but it may be present in the actual parchment support because it only occurs in small quantities."
Remarks
The presence of calcium carbonate in low quantities suggests it originated from the parchment preparation process rather than as an intentional paint filler, unlike the significant use of gypsum in Alcobaça manuscripts (p. 90).
Scientific Analysis
Chemical CompositionCaCO3
Analytical Techniques
micro-analytical approach
Certainty Level
Probable
Instrumentally Verified
Verified
Metadata
Material Type
paper
Paper TypeParchment
RegionPortugal
Approx. Year1150
Source Information
AuthorRita Castro, Adelaide Miranda and Maria João Melo. Interpreting lac dye in medieval written sources: new knowledge from the reconstruction of recipes relating to illuminations in Portuguese manuscripts. ATSR, 2015.
CollectionLorvão and Santa Cruz scriptoria
Language
N/A
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