solid gold,

🗣 SL提问: solid gold

✍️ Ai批改: Solid gold refers to gold that is 100% pure gold, meaning it is not mixed with any other metals or alloys、Here’s what you need to know:

1、Purity
Solid gold is 24 karat (24K) gold, which is 99.9% pure、
It is softer and more malleable than alloyed gold, making it less practical for everyday jewelry (which is why most jewelry uses lower-karat gold like 14K or 18K).

2、Properties
Color: Bright yellow (no other metals to alter its hue)、
Durability: Easily scratched or bent due to its softness、
Tarnish/Corrosion: Does not tarnish or rust since it’s non-reactive、

3、Uses
Investment (bullion bars, coins)、
High-end jewelry (often in cultures where purity is valued over durability)、
Electronics/dentistry (due to conductivity and biocompatibility)、

4、Misconceptions
Many items labeled solid gold are actually gold alloys (e.g., 14K gold is only ~58.3% gold)、
Solid gold ≠ hollow gold (e.g., gold-plated or filled items have a thin gold layer over base metal)、

5、How to Verify
Look for hallmarks (e.g., 24K, 999, or Au999)、
Use a density test or acid test for purity、
Buy from reputable dealers with certifications、

6、Alternatives
Gold-plated: Thin gold layer over another metal、
Gold-filled: Thicker gold layer (5%+ by weight)、
Vermeil: Gold-plated sterling silver、

Would you like help identifying a specific item or understanding gold pricing?