Test Material
Record name
Record name starts with institution (Freer, MFA, etc.) follower by the current institutional registration number
Description
The description field will contain an English language description of the fabric. It must include: Holding institution with their number: Museum of Fine Arts, Boston (001) Fiber, nationality, date of origin: Japanese silk textile, 20th century reproduction of Classification (weave, colors, structure, design) : Basic twill damask with red and white threads forming a cloud pattern that repeats horizontally every 22 centimeter and vertically every 35....
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Tabular Properties
| Composition | CaCO3 |
|---|---|
| CAS | 471-34-1 |
| Mohs Hardness | 3.0 |
| Density | 2.71-2.72 |
| Molecular Weight | mol. wt. = 100.09 |
| Refractive Index | 1.486; 1.658; (1.566) |
Additional Information
° R. Gettens, E. West Fitzhugh, R.Feller, "Calcium Carbonate Whites", Artists Pigments, Vol. 2., A. Roy ed. Oxford University Press, Oxford, 1993.
Comparisons
Properties of Common Abrasives
Additional Images
Calcite
Plane polarized light micrograph of calcite
Sources Checked for Data in Record
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942 Comment: Mohs =2