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Colemanite 38

2CaO.3B2O3.5H2O, Argentina Colemanite

OxideAnalysisFormula
CaO22.50%0.915
MgO1.25%0.071
K2O0.30%0.007
Na2O0.20%0.007
TiO20.07%0.002
Al2O31.00%0.022
B2O338.00%1.245
SiO27.00%0.266
Fe2O30.50%0.007
H2O1.50
LOI20.00
SO32.30
Oxide Weight161.51
Formula Weight211.95
If this formula is not unified correctly please contact us.

This is mined in North Argentina, in the Andes Mountains, at about 4500 meters altitude. It is sold mainly for use in fiberglass, ceramics, glass, and as fertilizers. Production in 2002 was about 50,000 tons per year. Material can be ground to 200 mesh. Material is normally sold in bulk bag but the company has facilities to pack in 25 and 50 kg bags also.

As2O3: 300-600 ppm

Size Granulated or Crushed to 20 mesh


Out Bound Links


By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Colemanite 38" descrip="2CaO.3B2O3.5H2O, Argentina Colemanite" searchkey="" loi="0.00" casnumber="1318-33-8"> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="22.500" tolerance="1.5"/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="1.250" tolerance="0.45"/> <oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.300" tolerance="0.1"/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.200" tolerance="0.1"/> <oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="0.070" tolerance=".02"/> <oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="1.000" tolerance="0.2"/> <oxide symbol="B2O3" name="Boric Oxide" status="" percent="38.000" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="7.000" tolerance="2.0"/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.500" tolerance="0.2"/> </oxides> <volatiles> <volatile symbol="H2O" name="Water" percent="1.500" tolerance="0.5"/> <volatile symbol="LOI" name="Loss on Ignition" percent="20.000" tolerance="3.0"/> <volatile symbol="SO3" name="Sulfur Trioxide" percent="2.300" tolerance="0.5"/> </volatiles> </material>


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