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Limestone, (Calcite) CaO+CO2=CaO3, plays an important role in our daily lives. Here, you can read about the different lime products from Franzefoss Minerals.


Dolomite is a rock-forming carbonate mineral with a chemical composition of calcium magnesium carbonate (CaMg(CO3)2). Dolomite is a metamorphic sedimentary rock. The colour is often white, but may contain greyish veins.


Basalt is a dark, fine-grained lava rock, consisting mainly of feldspar (plagioclase) and the pyroxene (augite).

Quick lime

Quick lime, calcium oxide (CaO), is produced in high shaft kilns, rotary kilns or in annular kilns by heating limestone, calcium carbonate (CaCO3), to around 1,200 °C: CaCO3 = CaO + CO2.

Slaked lime

Slaked lime is produced by adding water to quick lime. Quick lime is produced by heating limestone to around 1,200 °C.


Limestone is a type of rock composed mainly of calcium carbonate (CaCO3). Limestone is formed under high pressure and heat over a long time.

Did you know that lime…

…neutralises acidic soil
…helps bring salmon back to lakes and rivers
…helps clean municipal drinking water and wastewater
…is the basis of mortar and cement
…is a filler in paint, plastic and paper
…reduces ore to metals
…is added to glass and ceramics
…stabilises unstable ground
…is the material in Michelangelo’s statues
…is an important component of your skeleton

Anne Wold-Hansen
tlf. +4792211840
tlf. +4792211840

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