Carats and fineness are both words relating to gems.
All British gold Sovereign coinage minted since 1817 are at 22 carats or 91.67% fineness.
875 is 21carat gold fineness. Rare, usually found in Arab countries.
800 is Silver, its not Sterling otherwise it would 925, but its still Silver nonetheless, just a different fineness. different carats of gold are just different fineness' too.In regards to 'FE', 2 letters are usually the mark of the sponsor or the maker.
Diamonds are weighed in carats.
A "0.80 necklace" typically refers to the weight of the necklace in carats, indicating that it contains 0.80 carats of gemstones or diamonds. In the context of precious metals, it might also refer to the fineness or purity of the material, though this is less common. It's important to clarify the context to understand what the "0.80" specifically represents.
Typically, higher numbers for Blaine Fineness relate to smaller particle size. Think of it as spheres, the smaller you make your sphere the more surface area there is compared to volume, in other words a smaller space contains more surface area. Additionally, the surface structure will affect the fineness without affecting particle size. Blaine Fineness is measured in m^2/ g, this means the mass of sample used will affect the fineness. A denser material may have more surface area but also has a higher mass to achieve it.
Carats
Pure gold is 24 carats. 22 carats is 91.6% ie 22/24. Another method of describing gold is by the Fineness, which is given in parts per 1000, hence 916.6 for 22 carat. I assume 91.3% is a typo.
Fineness Modulus is a measurement of the coarseness or fineness of a given aggregate.
It's a hotel with special elegance, sumtuousness or fineness.
It stands for the word "carat", and is a measure of the gold's purity. The work is also often spelled "karat", with the matching abbreviation kt. Pure gold is measured at 24 carats, so divide the gold's purity in carats by 24 to determine how much of it is gold and how much is other metals such as copper or silver. For example, gold measured at 18 carats is 18/24 or 3/4 pure gold. An alternative measure is fineness, usually expressed as a number with 3 or 4 digits. Often but not always there's a leading decimal point. If it's not present the decimal point is implied. Fineness is used to express the purity of any precious metal, not just gold. If fineness is given with 3 digits, divide by 1000 to get the actual purity; divide by 10000 if there are 4 digits. For example, pre-1964 U.S. coins were mostly made of 900-fine silver, which means they were 900/1000 (= 9/10, or 90%) silver.
would mean 9-10 carats