Earth Sciences and Ecology Question #106
Stef, a 12 year old female from the Internet asks on December 16, 1999,
How are minerals used in the production of Canadian coins?
viewed 15516 times
answered on December 16, 1999
There's quite a bit about this at the website of the Royal Canadian Mint http://www.rcmint.ca/en/refinery/. For instance: Royal Canadian Mint Fine Gold and Fine Silver Reference Materials:
- are designed as a series of calibration standards for solid sampling spectrometry and as quality control standards for precious metal analysis
- have comprehensive compositions - Fine Gold contains all the 13 trace elements stipulated in the American Society for Testing & Materials (ASTM) Standard B562-86, as well as platinum, titanium and zinc. Fine Silver contains all the 7 trace elements stipulated in the ASTM Standard B413-89, as well as gold, nickel, platinum, tin and zinc
- are available in blocks, turnings or wire for fine gold and in blocks or turnings for fine silver
- are homogeneous
- are traceable to international weight standards
- have certificate values with 95% confidence intervals
- have been analyzed by innovative methods; these methods have been published in leading scientific journals
- are being used internationally
Add to or comment on this answer using the form below.
Note: All submissions are moderated prior to posting.
If you found this answer useful, please consider making a small donation to science.ca.