Limestone rock - a source of high purity calcium carbonate
Limestone rock - a source of high purity calcium carbonate

Our Products

superlon ground calcium carbonateSuperlon | Fine GCC
Fine, high purity ground calcium carbonate powders

longcal granular calcium carbonateLongcal | Granular GCC
High purity granular calcium carbonates

specialty products calcium oxide hydroxideSpeciality Products
Refox CaO, Hydralon Ca(OH)2, Fluromag MgO

ground agricultural limeAgricultural Lime
Limestone and dolomite for agricultural liming

dimensional stoneLandscaping Stone
Architectural, rockery and walling stone

longcliffe limestone aggregatesLongcliffe Aggregates
Clean, evently graded limestone aggregates

golconda dolomite aggregatesGolconda Aggregates
Decorative dolomite aggregates and grits

Limestone uses chart


Fine, high purity Ground Calcium Carbonate (GCC) powders

Product Overview

The Superlon range of ground calcium carbonate (GCC) powders is produced from very high purity Carboniferous Limestone at our company's Brassington Moor quarry and processing operations in Derbyshire. The material has been crushed, milled, dried and screened, then milled and classified again to produce products of exceptional purity and consistency available in a variety of grades.

Applications of Superlon Ground Calcium Carbonate (GCC)

Superlon Properties and Benefits

Typical properties of Superlon ground calcium carbonates:

Appearance off white, fine powder
Calcium Carbonate (%) 98.25 min
Specific Gravity 2.65
Moisture (%) 0.05
Available Grades/Sizes 3µm to 300µm
Tightly controlled particle size distribution

For further information please consult the relevant technical data sheet.

Superlon Ground Calcium Carbonate Grades

Superlon is available in a wide range of grades and particle sizes ranging from 3µ to 300µ.

Our operations are fully accredited to ISO 9001 and ISO 14001. Datasheets and SDS on specific grades are available on request. Please contact us for further information.


Superlon Granular Calcium Carbonate is available in bulk, IBCs and sacks - palletised and shrunk wrapped if required.


Limestone (CAS: 1317-65-3 & EINECS: 215-279-6) is exempt from the obligation to pre-register under the REACH legislation. The exemption is granted in Annex V, Paragraph 7 as the material is a naturally occurring mineral found in nature.

Natural Chemistry...Pure Science

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