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GOLD
- Metallic luster and corrosion free.
- Uses: Bullion, currency, Jewelry
- Greatest producer South Africa (wit, water, Sand, Lydenburgh, Odendaalrus) Canada, Japan, US, Zimbabwe and Ghana.
- India: Vein gold deposits in Karnataka (Kolar, Hutti), Andhra Pradesh (Anantapur), Assam, Bihar, MP, Tamil Nadu.
- Alluvial Gold
- Subarnarekha Placer deposits, sand panning extraction
- Kerala: Punnapuzha and Chabiyarpuzha
SILVER
- Unlike gold, it tarnishes due to contact with Sulphur.
- Very resistant to Acetic acid hence widely used in making Watts for vinegar, bear and industrial acids.
- Native form, Argentite ore
- Found mixed with copper and zinc.
- Mexico, USSR, Canada
- India: Zawar mines, Lead smelters, Kolar and Hutti. Singbhum copper smelting plant.
