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Blue Antique® is slightly different to our other granite stones, with its unique warm brown colour, and blue and turquoise crystals. Blue Antique® can be cut in any direction, as crystals and colouring are strong and evenly spread, meaning that first choice materials can be sourced from second and third choice blocks.


The development of our Blue Antique® quarry in Egersund continues and a large new area has been acquired, securing future supplies. The quarry has been widened and we are producing on several levels. Due to the characteristics of the deposit, we have a substantial production of large blocks in second and third choice.

Name: Hellvik
Location: Egersund, Norway

Projects using

Blue Antique®

Technical Data


Petrographic information:
Magmatic plutonic rock, anorthosite

Key minerals:

Accessory minerals:
Pyroxene, amphibole, biotite, quartz

Geological age:
Precambrian (1.3 billion years)

Chemical analysis:
SiO2 (54,64), TiO2 (0,12%), Al2O3 (26,89%), Fe2O3 (0,65%), FeO (0,58%), MnO (0,01%), MgO (1,03%), CaO (10,8%), Na2O (5,19%), K2O (0,34%), P2O5 (0,07%), H2O (0,05%), H2O+ (0,3%)



Flexural strength:
15,7 ± 0,8 N/mm²

Resistanceto wear(capon):
13,5 ± 0,4 mm

Frost resistance:

Hardness (MOHS):
6 – 6,5

Apparent density:
2695 ± 5,4 kg/m³

0,28 ± 0,05 volume %

Water absorbtion:
0,10 mass %

Compressive strenght:
203 ± 24,6 N/mm²



  • Cladding
  • Kitchen tops
  • Ornamentals
  • Exterior flooring and paving
  • Terraces
  • Sills
  • Tops for bathroom
  • Internal windowsills
  • Floors
  • Wall decorations
  • Gravestones