Black Leopard Gabbro

Granite gabbro "Black Leopard" is mined in the Karatagskoe deposit of the Askiz region of the Republic of Khakassia, Russia.

Average density - 3100 kg / m3

True density - 3190 kg / m3

Water absorption - 0,04%

Compressive strength in dry condition - avg. 154,3 MPa

Compressive strength in water-saturated state - avg. 168,4 MPa

Reduction of compressive strength of rock in a water-saturated state - 0,0 %

Compressive strength after 50 cycles of frost resistance tests - 162,8 MPa

Compressive strength after 100 cycles of frost resistance tests - 159,2 MPa

Compressive strength after 150 cycles of frost resistance tests - 154,2 MPa

Reduction in compressive strength after 150 cycles of frost resistance tests - 8,43 %

Frost resistance, brand - 300

Abrasion - 0,25 g / cm2

Impact resistance - 80 cm

Specific effective activity of natural radionuclides - 139,4 Bq / kg

Decorativeness - 26

Presence of harmful impurities - 0,0 %