Nuvolato Apuano
carriere d'origine

Canalgrande

Carrara, Italie
Petrografic name (according EN 12407): Marble
Macroscopic description: An aphanitic, compact dark grey lithotype with a cloudy appearance due to the presence of lighter-coloured flames and patches on a dark background. Abundant darkish veins occur that are submillimetric in size with a parallel orientation. These are very close to one another in places and anastomosed, forming dark grey sub centimetric bands. There are rare plurimillimetric sub rounded patches that are also dark grey in colour. The material has no surface porosity.
Les suivantes donnèes techniques n'offrent qu'une indication gènèrale des vèritables caractèristiques du matèriel. Etant donnè qu'il s'agit d'un produit naturel, nous vous conseillons de bien vouloir rèpèter les tests afin de confirmer et ajourner les donnèe mêmes. La sociètè décline toute responsabilitè pour tout usage abusif.
prev
next
 
 
 
Physical mechanical characteristics
STANDARD U.M. MEAN VALUE ST. DEV.
EN 13755-08 Water absorption at atmospheric pressure % 0,15 0,02
EN 1936-07 Apparent Density KG/m3 2700 0
EN 1936-07 Open porosity % 0,4 0,04
EN 12372-07 Flexural strength
  (in natural conditions) MPa 13,5 1,4
  (EN 12371-03 exposed to 48 frost cycles MPa 10,7 1,6
EN 1926-07 Uniaxial compressive strength MPa 102,4 6,5
EN 14231-04 Slip resistance (honed finishing)
  (dry) USRV 66 2
  (wet) USRV 31 1,5
Block and slab characteristics
Average size of blocks: 3,00 x 1,70 x 1,70m. Slabs are preferably cut against the grain or perpendicular to the grain, i.e. the hard way and the easy way.

Du découpage de blocsDu découpage de blocs   Lavoration de surfaceLavoration de surface
Microscopic description according to EN 12407 e EN 12460
A crystalloblastic metamorphic lithotype with calcite crystals that are seriate in size between 50 and 400 ¦Ìm, subeuhedral/euhedral with mainly straight or rounded/sutured boundaries, and patches and veins. The areas that macroscopically appear lighter in colour are composed of very fine-grained calcitic crystals (< 50 ¦Ìm), that are generally clear, associated with larger-sized blasts (250 ¦Ìm) clouded by abundant opaque minerals and in places accompanied by iso-orientated acicular muscovite, pyrite, quartz (of a maximum size of 850 ¦Ìm) and trace amounts of feldspar. The darker veins, clearly iso-orientated, are composed of abundant magnetite in glomerules (200 ¦Ìm) associated with green phyllosilicates and rare hematite, limonite, chlorite, tourmaline, quartz and dolomite.