Technical Data

Limestone Characteristics

Average compressive strength 50 N/mm2 

Los Angeles Abrasion Value <40%
Mineral Make up: CACO3 98% with little impurities
Color: Brilliant white
SIO2 0.06 %
MGO 0.6 %
Fe2O3 < 0.04%

Average Density: 2550 Kg/M3 

Absorption value: Nil
Chemical nature of powder: Limestone dust: CACO3, coating present

Specifications for fine ground limestone for glass fabrication 

SiO2 0,3%
CaO 54.5%
MgO 0,3 %
Al2O3 0,3%
Fe2O3 < 0,06%
Size 0.106 mm – 3.35 mm
Selectively mined and fine ground limestone-natural Ca phosphate P2O5 (2-4%P)

Chemical Composition 

P 2 – 4%
P Soluble in 2% citric acid ≥ 60% of total P
Phosphate Rock Mineralogy Substituted Apatite