Serpentinite Stones
Name and composition - It is metamorphosed ultra basic rock serpentinite mainly consists of serpentine 2MgO.2SiO2.2H2O (Hydrous magnesium silicate) which is an altered product of olivine and pyroxene.
Physical Properties - It is a greenish/greenish grey coloured, fine grained, hard massive to fractured ultra basic rock having web like designs of fine calcite, veins/veinlets.
Mode of Occurrence - Occurs along a major faults zone running from south of dungarpur district to Ajmer. The deposit is located in simalwara, dungurpur, kherwara etc.
Uses - Used as dimensional and decorative stone in flooring, wall cladding, pillars, handicrafts, artisan work, monuments, tombs, temples etc.
Mineral based Industries – Diamond gangue saws, cutting and polishing units, handicrafts and artisan units, in carving and sculpturing.
Industrial Prospects –Gangue saw units, cutting & polishing units, carving etc.
Physical Properties
Hardness
Sp. gr.
Luster
Cleavage
Crystal System
Sp. gr.
Luster
Cleavage
Crystal System
3 to 5.5
2.5 to 2.6
Greasy or waxy
Poor to perfect
Most serpentine minerals are monoclinic.
2.5 to 2.6
Greasy or waxy
Poor to perfect
Most serpentine minerals are monoclinic.
Chemical Properties
Chemical Classification
Water absorption
Diaphaneity
Chemical Composition
Color
Water absorption
Diaphaneity
Chemical Composition
Color
Silicate
0.07 % by weight
Translucent to opaque
(Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Usually various shades of green, but can be yellow, black, white, and other colors.
0.07 % by weight
Translucent to opaque
(Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Usually various shades of green, but can be yellow, black, white, and other colors.
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