IMITATION PRECIOUS STONES.
‘•Paste" from which imitation precious stones are made is widely known, but few are acquainted with the ingredients, though it is generally understood that the paste gains its brilliance from the lead it contains. Formulas vary for the paste, but all contain rock crystal, which also contributes to the brilliancy, red lead, carbonate of potash, borax, and white arsenic. It is required that these articles shall be of a high grade of purity, as there is a considerable waste, so that the gems made from "stress,” as the composition is technically known, are by no means inexpensive.
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https://paperspast.natlib.govt.nz/periodicals/NZGRAP19060602.2.23.2
Bibliographic details
New Zealand Graphic, Volume XXXVI, Issue 22, 2 June 1906, Page 15
Word Count
100IMITATION PRECIOUS STONES. New Zealand Graphic, Volume XXXVI, Issue 22, 2 June 1906, Page 15
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