Introduction
Gold was revered for its beauty and spiritual importance long before it became the business world's trading medium and the foundation for modern money. Gold was the ideal material for the ancient Egyptians because it had a gleaming yellow surface that was soft enough to work with while yet being extremely durable. In fact, gold was the most suitable of the three known metals stable enough to have been utilized for trade at the time. It didn't corrode and didn't react with anything else. Unlike silver, it did not tarnish, and it could be turned into cash, unlike copper, due to its high melting point. As a result, gold became the most sought-after metal on the planet, transcending regional boundaries to become a universal symbol of political and spiritual might.
The color of
gold
Gold is always golden yellow in its pure state, but it is too soft to be used in jewelry, so it is alloyed with other metals to increase its hardness. Pale or white gold is made by combining silver, platinum, nickel, or zinc. Copper produces red or pink gold, while iron produces blue gold. The purity of alloyed gold is measured in karats, which are parts per 24: for example, 18-karat gold means the alloy contains 18 parts gold out of a total of 24 parts, whereas 24-karat gold is pure gold (and mostly too soft to be worn). It's important to note that "karat" is not the same as "carat," which is a weight measurement used in gemstones.
Specification
of Gold |
|
Chemical name |
Gold |
Formula |
Au |
Colors |
Gold yellow |
Structure |
Isometric |
Hardness |
2.5–3 |
SG |
19.3 RI n/a |
Luster |
metallic |
Key pieces
Ancient gold | Because gold is chemically inert, ancient gold objects that have
been buried for thousands of years emerge as dazzling as the day they were
manufactured. This Mycenaean brooch dates from approximately 1600–1100 BCE.
Roman gold | This gold armlet is in the shape of a coiled snake and dates from
the 1st century CE when the city of Pompeii was buried by volcanic ash and
lava. The attention to detail on the skull and the scales on the skin suggests
that this is a high-quality piece of work.
Cartier panther ring | The Panthère de Cartier collection's magnificent open-form, unisex ring in 18-karat yellow gold includes peridot eyes, an onyx nose, and lacquer accents. The finger of the wearer passes through the open mouth.
Rough
Placer gold | This is a gold nugget found in a placer deposit, which is a type
of stream gravel deposit (Spanish for alluvial sand). The nugget has a battered
and rounded appearance.
Gold in quartz | This specimen, which was mined directly from one of the Earth's
veins, is an illustration of how it naturally appears—as scattered grains in
quartz.
Grains of gold
| In-stream gravels and gold nuggets are uncommon. The majority of
stream gold is collected as minute grains or flakes like these.
Gold nugget | This nugget's angular shape and rough texture indicate that it hasn't traveled far from where it weathered out (became exposed).
Settings
Roman gold | In ancient Roman art, the dolphin was a common motif. These drop
dolphin earrings with big eyes come from the first century CE.
Scythian treasure | This ornate gold pectoral was most likely crafted for a Scythian monarch in modern-day Kazakhstan by Greek goldsmiths in the 4th century BCE.
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