Black River block code:m091221

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Description

Block specifications Black River code: m091221

Stone feature	%
Water absorption percent	0.23
Abrasion resistance of stone subjected to foot traffic Ha (AVg)	19.44
Dry elasticity modulus	1.75 × 10⁵ kg/cm²
Hardness	3 – 3.5
Apparent density	2.70 gr/cm³