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https://jewelrydesigns.com/jewelry/jewelry-making/jewelry-casting/
Jewelry casting is an art form that has been in existence for thousands of years. Since the time that man attained the ability to melt metal, artisans have been pouring molten gold into cavities shaped in stone, plaster, sand, and cuttlefish bone.
https://makezine.com/2012/03/16/how-to-cuttlebone-casting/
Mar 16, 2012 · The interior surface of the bone is composed of porous aragonite, a crystal form of calcium carbonate, that, in cuttlebone, is soft enough to take permanent impressions with moderate pressure. It is also naturally resistant to the heat of molten jewelry metals like silver and gold, though the mold is destroyed by the process of casting.
https://www.loren.com/blog/jewelry-casting/which-metals-are-best-for-jewelry-casting/
It is 30 times more rare than gold, and although it is an expensive jewelry casting choice, it is a preferred one for its strength and beauty. Similar to other metals, it is often mixed with other metals to make an alloy, resulting in a hard, heavy material that is ideal for everyday wear items like …
http://www.dhfco.com/pdf/DHF%20Catalog_casting.pdf
The mixture consists of Gypsum (Calcium Sulphate Hemihydrate) and Silica (Quartz and B-cristobalite). It is convenient to handle and relatively cheap. However, the instability of calcium sulphate is the cause for many casting defects. When mixing the investment wear a protective mask for protection against inhaling the dust from the powder.
https://www.interweave.com/article/jewelry/silver-casting-6-metal-casting-techniques-from-noel-yovovich/
Sep 21, 2015 · Metal casting is a fun, extra-hands-on technique. It allows you to recycle your own metal scraps, create one-of-a-kind creations (broom casting and water casting), and multiples of your designs or found objects (casting in silicone and cuttlebone molds). Casting has broad benefits for all types of jewelry makers. Read on to learn about metal casting methods from our guest, metal clay and metal ...
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