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.
