How do I know the gold caliber

jj February 27, 2020


Contents

  • 1 gold
  • 2 uses of gold
  • 3 gold caliber
  • 4 Learn about gold caliber

gold

One of the chemical elements bears the symbol Au, which is a mineral known for its bright yellow color, and its billionaire which is resistant to corrosion, capable of knocking, drawing and forming, it is not affected by acids but is soluble in royal water, and royal water is an acid mixture of hydrochloric and nitric, and a high gold density is equal to 19.3 grams per A cubic centimeter, found in nature in the form of veins in the ground or granules inside rocks or at the bottom of rivers, and may be associated with copper or lead.

Gold was known from thousands of years BC, and it was popular with the ancient Egyptians (the Pharaohs), so it made jewelery and jewelry for the kings, in addition to using it to decorate carts and making masks and coffins, and the pharaohs made thin plates that are parts of a millimeter thick, and in the Middle Ages a science arose Alchemy, which was the basis of the scientists ’attempt to make artificial gold that simulates natural gold, is called gold. Today, gold is the basis of cash used by the International Monetary Fund and the International Settlement Bank.

Gold uses

Pure gold is rarely used in applications due to its strong ductility, as it is usually mixed with copper, zinc, silver, or nickel, as these minerals give it higher durability and hardness, and the most popular gold applications are:
  • Precious jewelry industry: When producing jewelry in yellow gold, gold is mixed with copper and zinc in varying proportions, and these proportions determine the gold caliber, or its purity in the piece, and in general the higher the caliber, the greater the amount of gold in the piece and the yellowing of its color, and when producing white gold jewelry, it is completed Mix the gold with the element tin or palladium and this gives the mixture a white color.
  • Permanent dental fillings, due to its wear resistance and softness.
  • Treating rheumatism and osteitis with a gold solution.
  • Use gold to showcase the wealth that individuals possess, by obtaining golden food utensils, clothing made from gold threads, or decorating homes with gold objects such as door hands, water faucets, chandeliers, or antiques and any other home décor items.

Gold caliber

Caliber in gold is a standard for classifying gold bars based on their purity, i.e. the quantity of a gold element or mineral in them compared to other materials (zinc and copper). Another 23 parts are copper and zinc, i.e. the weight of gold in a 1 kg alloy equals 41.6 g, and 2 gauge means that the mixture consists of two parts of gold versus 22 parts of the other minerals, and the weight of gold in a one kilogram alloy is equal to 83.2 g, and so on.
The most common gold bullets are:
  • Caliber 24: It symbolizes pure gold, which has a minimum 99.9% percentage of gold in alloys.
  • 22-gauge: As the amount of gold in a single kg-weight alloy is 916.7 g.
  • Caliber 21: As the amount of gold in a single kg weight alloy is 875 grams.
  • 18-gauge: As the amount of gold in a single kg-weight alloy is 750 grams.

Learn about gold caliber

  • Expertise: A skilled goldsmith can recognize gold and its caliber by just holding it and pressing it.
  • Stamp: or stamp on the golden piece:
    • Square shape engraved in gold, caliber (for example, 21k).
    • Gold is stamped with the number 999.99 for a 24 carat, 875 for a 21 carat, or 750 for a 18 carat, as these numbers are equal to the weight of gold in grams in an alloy weighing one kilogram, and can be obtained by dividing the caliber by the number 24.