Rock Phosphate Minerals
Name and Composition - It is a rock containing P2O5 in the form of chlore-apatite, fluor-apatite, collophane Ca3 (F,CI) (PO4)3. Phosphrite having +30%, P2O5 is put under high grade category where as the phosphorite containing less than 30% P2O5 is put under low grade category.
Physical Properties - It occurs as granular and hard massive rock in the form of phosphatic stromatolites or nodules.
Mode of Occurrence - As phophatic stromatollites associated with dolomite / shale / quartzite / limestone and generally of sedimentary origin.
Uses - Chiefly used for manufacturing of single / triple super phosphate (phosphate fertilizers). It can also directly be used as fertilizer in acidic soils, also used in manufacture of chemicals, phosphoric acid etc.
Mineral based Industries – Fertilizer units for S.S.P and T.S.P., diammoniuam phosphate, dicalcium phosphate, phosphoric acid beneficiation plants.
Industrial Prospects – Beneficiation plant, fertilizer units (S.S.P., T.S.P.).
Physical Properties
Hardness
Sp. gr.
Density
Sp. gr.
Density
3 to 3.5
4.8 to 4.9
1.76 g/cm3
4.8 to 4.9
1.76 g/cm3
Chemical Properties
P2O5
CaO
SiO2
CO2
MaO
Fe2O3
Na2O
K2O
R2O3
F
Cl
SO3
CaO
SiO2
CO2
MaO
Fe2O3
Na2O
K2O
R2O3
F
Cl
SO3
30%
45%
6%
5%
0.5%
1%
0.8%
0.3%
2.1%
4%
0.2%
2.1%
45%
6%
5%
0.5%
1%
0.8%
0.3%
2.1%
4%
0.2%
2.1%
Indian Minerals
Metallic Minerals
Cadmium Ore
Copper Ore
Lead Ore
Zinc Ore
Iron Ore
Manganese Ore
Tungsten Ore
Bauxite Ore
Limestone and Dolomite
Limestone
Dolomite
Fertilizer Minerals
Gypsum
Pyrite
Rock Phosphate
Saltpeter
Fuel Minerals
Lignite
Glass and Ceramic Minerals
Ball Clay
China Clay
Feldspar
Fire Clay
Kyanite
Quartz
Quartzite
Silica Sand
Precious and Semiprecious Minerals
Aquamarine
Emerald
Industrial Minerals
Asbestos
Barytes
Bentonite
Calcite
Fluorite
Fuller's Earth
Garnet
Graphite
Magnesite
Mica
Mill Stone
Ochre
Pyrophylite
Siliceous Earth
Silimanite
Soapstone
Vermiculite
Wollastonite
Dimensional and Building Stone
Granite
Limestone - Flaggy
Marble
Rhyolite
Sandstone
Serpentinite
Shale/Schist/Phyllite
Slate