Geological Introduction Noto Stone

The Noto stone or cut stone whose name derives from the geological formation known as Noto” is a sedimentary rock composed mainly of limestones white yellowish, with a thicknesses varying between 0 and 25 m.
The extraction takes place by hollow-type well. The size of the extracted blocks vary from a maximum depth of 70 cm to a length and a width of 150-250 cm.

Mineralogical and Petrographic Characteristics

Microscopic description
Biomicrarenite or mudstoneof Dunham.
Scarcely altered, compact structure not affected by microfractures.

Color: Yellowish.
Bioclastis (foraminifera) very dispersed pore diameter, very low to nothing.
The composition is limestone.

Calcimetry: CaCO3=95,1

PHYSICAL AND MECHANICAL PROPERTIES

Absorption:

  • By immersion:17%
  • By capillarity:15%
  • Real specific weight:2700 kg/mg
  • Bulk density: 1853 Kg/mc
  • Porosity: 31,4%
  • Compression resistency: 184 Kg/cmq
  • Saturation resistency: 110 Kg/cmq
  • Flexural strength: 43,8 Kg/cmq

Use and Application

Wide spread usage of the stone of Noto came after the 1693 earthquake that struck the eastern Sicily. In Hyblaean this material became the protagonist of the reconstruction, characterizing and defining with its yellow-gold town planning and architecture of the city rebuilt. The easy processability and good physical and mechanical quality determined the use disparate: from the construction of load-bearing elements (walls for the exterior, arches, piers, times etc.) You switch to decorative elements (gargoyles, capitals, balustrades, fountains stairs, shelves etc.)