gemstone
Gold and Diamond Jewelry
Native Gold (Au) and Diamond (C)
Gold: Hardness 2.5-3; Color: yellow; Luster: metallic; Crystal: isometric. Diamond: Hardness 10; Color: colorless/white; Luster: adamantine; Crystal: cubic.
- Color
- yellow
- Luster
- metallic
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Physical properties
Gold: Hardness 2.5-3; Color: yellow; Luster: metallic; Crystal: isometric. Diamond: Hardness 10; Color: colorless/white; Luster: adamantine; Crystal: cubic.
Formation & geological history
Gold forms in hydrothermal veins and alluvial deposits. Diamonds form under high pressure and temperature in the Earth's mantle and are brought to the surface via kimberlite pipes.
Uses & applications
Primarily used in fine jewelry, as a store of value (investment), and in high-end electronics or industrial cutting tools.
Geological facts
Gold is one of the most ductile and malleable metals known. Diamonds are the hardest natural substance on Earth. Both have been symbols of wealth and status for thousands of years.
Field identification & locations
Identify by metal stamps (e.g., 10k, 14k, 18k) and gemstone setting style. Common in jewelry retail and estate sales. Use a diamond tester to verify stones.
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