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Examples of metals and metal-bearing rocks

Answer Text:
METALS
Introduction:
- Only most unreactive metals occur naturally in their elementary form.

Examples: - Gold, Silver, Platinum.
- Other elements occur as ores i.e. metal – bearing rocks.
Examples:
- Oxides
- Sulphides
- Carbonates
- Chlorides.
Note:
-An ore is a mineral deposit with reasonable composition of a desired metal.