Calcium carbonate (CaCO 3 ) is a calcareous material that forms different types of rocks: : marble, limestone rocks, travertine. The micronisation process makes it pure, bright and very white.

It plays an important role in many industrial and agricultural processes . It is used in the production of high quality paper , paints , adhesive films and plastics, in building, in the pharmaceutical, cosmetic and food industries . It is also valuable in the protection of the environment , used for the treatment of drinking water , neutralisation of acid rain and the desulphurisation of combustion fumes.

The Calcium Carbonate produced by BS Quarrysar Group is made from the processing of its own Orosei Daino marble .
It is available in considerable quantities in the most commonly used granulometries and on request.

X- ray fluorescence analysis
(values expressed in % of weight)

SiO 2
< 10
Silica
Al 2 O 3
< 0.05
Aluminum Oxide
Na 2 O
< 0.10
Sodium Oxide
K2O
< 0.05
Potassium Oxide
CaO
55.6
Calcium
MgO
0.42
Magnesium Oxide
BaO
< 0.05
Barium Oxide
Fe 2 O 3 tot.
0.013
Ferric Oxide
CrO 3
< 0.020
Chromium Trioxide
TiO 2
< 0.020
Titanium Dioxide
ZrO 2
< 0.020
Zirconium Dioxide
PbO
< 0.020
Lead
P.F.
105-1100°C 43.9





Micronised powder of limestone rock
Median diameter 3 - 12 mm
Median diameter 8 - 25 mm
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