Coin Silver (900) is a silver-purity grade used to compare millesimal-fineness silver content in jewelry and silverware.
Coin silver is 90% silver, stamped 900. The United States used it for dimes, quarters and half dollars until 1964.
Measurement system: Jewelry purity grading based on millesimal (per-1000) fineness. SI equivalent: Reference purity factor used in the converter: 0.9.
Coin Silver (900) facts
- Unit name
- Coin Silver (900)
- Symbol
- 900
- Category
- Silver Purity
- Measurement system
- Jewelry purity grading based on millesimal (per-1000) fineness
- SI equivalent
- Reference purity factor used in the converter: 0.9
- Common uses
- Jewelry, silverware, valuation and silver-purity checks
Definition of the coin silver (900)
Coin Silver (900) is a silver-purity grade used to compare millesimal-fineness silver content in jewelry and silverware.
Measurement system and SI relationship
Jewelry purity grading based on millesimal (per-1000) fineness
SI equivalent: Reference purity factor used in the converter: 0.9
History of the coin silver (900)
Coin silver is 90% silver, stamped 900. The United States used it for dimes, quarters and half dollars until 1964.
Where is the coin silver (900) used?
Jewelry, silverware, valuation and silver-purity checks