classification of minerals

1. Ferrous ---- Iron , chromium , nickel , magnesium
2. Non ferrous ---Aluminium ,Copper , Brass , Silver ,Lead , Zinc, Tungsten
 3. Precious minerals -- Platinum , gold , silver
4. Non metallic minerals-- Mica , asbestos
5. Fertilizer minerals --- Gypsum , phosphate
6. Fuel minerals ---- Coal , petroleum , natural gas
7. Nuclear minerals -- Thorium , uranium , zirconium

India
Exports -- Iron , Mica , Thorium
Imports -- Petroleum , Silver , Zinc, Tin , Copper
Self sufficient -- Coal , Chromite , Slate , Dolomite

INDIA OIL WELLS
• India first natural gas identified -- jwalamukhi -- himachal pradesh
 • india first oil wells -- maccom -1866 ( Assam)
 • 2nd oil well --Djibouti --1890( Assam)
 • Oil wells in india ASSAM -- maccom , digboui , sharkhatia , shivsagar, rudrasagar
 • Gujrat oil wells -- khambat , ankaleswar , aliabet , jawhar oil well
• Arunchal pradesh -- cherali , karsang
• Tripura -- bharamura , hampi bazar
 • Rajasthan -- mangalam , saraswathi , rajeswari
• Maharastra -- bombay high (Arbian sea)-- india largest oil well , mukta , neelima , bassung .
• Tamil nadu -- Narmin oilfield
 • Andhrapradesh --Gaddi mogga , ravva , mori , lingala.
• Total refineries -- 20 , public sector --17 , 2 -- private sector , 1 -- mangalore ( karnataka ).