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Grey Marble

Grey marbles are made of precious calcareous rock that have a variety of chromatic colours, with veins that range from dark grey to light grey and some even have a touch of red.
They are greatly valued for their decorative and polishing capacities, qualities which attract project designers. They are used in innovative contemporary design projects and architecture, especially for immense spaces.
Grey marbles are also known as Grey Fleury, Grey Sonata and Grey Geneva.

Grigio Ginevra (‘Grey Geneva’): heterogeneous calcareous rock with micrite flecks containing calcite microfractures; granular texture; compact with no pores; a soft elegant grey suitable for any project.

Grigio Brecciato (‘Grey Sonata’): heterogeneous calcareous rock with micrite flecks containing calcite microfractures; granular texture; compact with no pores; a striking strong grey colour.

Grigio Fior di Bosco (‘Grey Fleury’): heterogeneous calcareous rock with micrite flecks containing calcite microfractures; granular texture; compact with no pores; natural veins make it elegant and decorative.

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PHYSICAL AND MECHANICAL CHARACTERISTICS

   
  Simple compression breaking load (Mpa)   82
  Simple compression breaking load after freezing treatment (Mpa)   66
  Imbibition coefficient (°/°°)   1,74
  Indirect tensile strength by bending (MPa)   20
  Impact resistance: minimum fall height (cm)   55
  Coefficient of thermal linear expansion (10-6/° C)   5,6
  Wear due to sliding friction   0,28
  Volume unit weight (kN/m3)   28,0
  Impact resistance: minimum fall height (cm)   55
  Normal modulus of elasticity (MPa) Tangent Et 48938
    Secant Es 44141
  Knoop micro-hardness (Mpa)   2269