2.7 - 3.0 specific gravity 150 - 200 compressive strength
Natural stones.
Natural stones.
Natural-stones.
Rock.
Stones.Importing and manufacturer
Rocks and stones.
Mactan shell stone.
Pebbles stones.
Natural stones slates such as red, rustic, yellow, black and green slate, pebbles stones.
Armor rocks.
Armour rock.
Armour rock.
Armour Rock.
Armour Rock.
Armour rock.
Untested stones.
Boulder rocks.
Armour rock.
Pumice stone.
