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1 troy ounce of four nines fine gold (999.9)
1 troy ounce of four nines fine gold (999.9)
A 2019 American Silver Eagle bullion coin with a fineness of 999 (three nines fine), together with a Walking Liberty half dollar with a fineness of 90
A 2019 American Silver Eagle bullion coin with a fineness of 999 (three nines fine), together with a Walking Liberty half dollar with a fineness of 900 (one nine fine); this latter alloy is also often referred to as 90% silver or coin silver.
Carob (Ceratonia siliqua) pod and seeds, origin of karat via Arabic qīrāṭ which itself comes from the Greek word for the seed kerátion
Carob (Ceratonia siliqua) pod and seeds, origin of karat via Arabic qīrāṭ which itself comes from the Greek word for the seed kerátion
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Three gems from the beryl family with different colors.
Three gems from the beryl family with different colors.