Physical properties:
average density – 3062 kg / m3;
compressive strength in dry condition – 99 MPa;
water absorption – 0.12%;
abrasion – 0.35 g / cm2;
porosity – 1.2%;
frost resistance – 100 (F100);
salt resistance – 0.20%;
radioactivity – class 1;
Northern field on the border of Karelia and Murmansk Oblast. It is widely used in the interior sphere, as it has a high class of decorativeness due to its bright layered structure and unique black-green color with golden splashes. But due to the fact that the breed has excellent frost resistance properties, it is actively used by manufacturers of ritual products.
