Monday, July 9, 2018

lye from lees and more

From lime or calcined wine lees

Strasbourg Manuscript: lye from calcined wine lees (Neven 170) who quotes Colmarer Kunstbuch.

Alchemy of Paint
Bucklow (28-29, 48, 61-64, 69,75,109, 200)

First Lye post with personal references

Wednesday, June 20, 2018

Centaurea cyanus, Blue Bottle trial 1 & 2 2017-18

A (poor, sorry!) picture of the first trials for blue from my cornflowers. The top is plain cornflower petal juice squeezed out and painted on vellum surface Strathmore 300 Series Bristol board and the bottom is on the same bristol on a ground of lead white.

Sunday, June 17, 2018

Cornflower blue references


Bachelor buttons, blue bottle, corn flowers, cornflower, corne flower, corn-floure, the flowers that grow among the corn...  We have a plethora of evidence that medieval pigment producers used Centaurea cyanus to make their own lovely, if fugitive, blue. Lets find some translated sources!

Click "Read More" below to continue!

Saturday, June 2, 2018

lime from Oyster shells

Instructions for making oyster shells into lime aka quicklime exist in Mappae Clavicula (Smith and Hawthorne 51-2). I'll include the authors note too as I think it's an interesting judgement about the resulting purity of the product.


(Smith and Hawthorne 51-2)


Lime is CaO, calcium oxide. Slaked lime is basically just lime 'slaked', or mixed, with water turning it into calcium hydroxide Ca(OH)2.

Lime was useful medievally and broadly employed for painting (Merrifield 298-300) and building houses among other things.

Wednesday, May 16, 2018

Wednesday, May 9, 2018

Pandius

Reading along in Mappae Clavicula as translated by Smith, Cyril Stanley and Hawthorne, Daniel G. I keep seeing the term 'pandius' for mixes of different colors but not always the same hues, tints or combinations and then an explanation:
Smith, Cyril Stanley and Hawthorne, Daniel G.'s Mappae Clavicula (42)




Ibid 42-43



I'll have to go looking in the other translations of colors in medieval MS soon to see if they use 'pandius'...