Garnet Sand Specification
PHYSICAL CHARACTERISTICS
Specific Weight : 4.1 g/cm3
Average Bulk : 2.4 g/cm3
Hardness : 8.0 (Mohs Scale)
OTHER CHARACTERISTICS
Crystal System : Cubic
Habit : Dodecadnedron with occasional
Trapezohedron
Fracture : Sub-Conchoidal
Durability : Very good
Free Flow : 90% Minimum
Susceptibility to Acid : None
Moisture Absorption : Non Hygroscopic, Inert.
Magnetism : Very Slightly Magnetic
Conductivity : Less than 25 Microsiemens per Meter
Radio Activity : Not Detectable above background
Pathological Effects : None
Free Silica Content : None
ANALYSIS & CHARACTERISTICS
ALUMINA [ as Al2 O3 ] : 16.72-18.06%
IRON [ as Fe2 O3 ] : 27.95-29.50%
SILICA [ as Si O2 ] : 37.44-37.77%
MAGNESIUM [ as Mg O ] : 4.75-4.88%
CALCIUM [ as Ca O ] : 5.0-9.48%
TITANIUM [ as Ti O2 ] : 2.7-2.9%
PHOSPHOROUS [ as P2 O5 ] : 0.05%
MANGANESE [ as Mn O ] : 0.5%
ZIRCON [ as Zr O2 ] : Traces
CHLORIDE CONTENT : Less than 25 ppm
SOLUBLE SALTS : Less than 100 ppm
PH OF AQUEOUS MEDIUM : 6.93
GYPSUM CONTENT : Nil
MOISTURE CONTENT : Less than 0.5%
CARBONATE CONTENT : Traces
LOSS ON IGNITION : Nil
METAL CONTENT : Traces
[ Specifically Free Iron, Free Copper and Other Heavy Metals ]
MINERALOGICAL COMPOSITION
Garnet (Almandite) : 97 – 98%
Ilmenite : 1-2%
Quartz : ½ %
Others : ½ %
