طلق (Talq/Mica)
Iran
10th Century
Source: Marasi, M., & Pouryaii, A. (2021). An Overview of General Methods of Construction and Fusing of Paint and Ink Through Islamic Ancient Methods. Journal of Studies in Color World, 10(4), 1-8.
Recipe Details
Ingredients
طلق
Preparation Steps
The pigment is prepared by physical processing: historical sources suggest burying talc in animal intestines for thirty days, or steaming it over bean vapors to loosen layers (p. 4). In the experimental section, it is mechanically reduced using ice and stones in a linen bag to filter only the microscopic translucent plates (p. 7).
Original Recipe Text
The pigment is prepared by physical processing: historical sources suggest burying talc in animal intestines for thirty days, or steaming it over bean vapors to loosen layers (p. 4). In the experimental section, it is mechanically reduced using ice and stones in a linen bag to filter only the microscopic translucent plates (p. 7).
Evidence
"طلق یک عنصر معدنی است دارای مزاج سرد و خشک... فرمول آن به شکل Mg3Si4O10(OH)2 است."
Remarks
Talc is categorized as a silicate mineral with a hardness of 1 on the Mohs scale (p. 4). In Islamic medicine and art, its 'temperament' is defined as cold and dry in the third degree (p. 4). The 'Yamani' variety is cited as the highest quality (white and silvery) (p. 4).
Scientific Analysis
Chemical CompositionMg3Si4O10(OH)2
Analytical Techniques
بررسی کانیشناسی
میکروسکوپی
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
pigment
ColorSilver
RegionIran
Approx. Year950
Source Information
AuthorMarasi, M., & Pouryaii, A.
CollectionMineral sources (Iran: Isfahan, Tehran, Lorestan)
Language
N/A
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