Raw Silk

Über Raw Silk

Raw Silk (also Raw Silk Ivory, Ivory Raw Silk) is a fine-grained, directionally oriented gneiss quarried in Melur, Madurai district, Tamil Nadu, India. Despite being marketed commercially as granite — a common convention for Indian metamorphic rocks — DNSA classifies it correctly as gneiss (metamorphic). The stone has a warm pink-ivory to cream colouration with subtle layering from the gneissic fabric. DNSA (Stein 4745, RAW SILK IVORY) provides the primary technical data: density 2588 kg/m³, compressive 169.2 MPa, flexural 10.2 MPa, WA 0.60%. StoneContact sources (s661, s15618) report lower compressive (100–117 MPa) and WA (0.35%) — DNSA values are preferred. Acid-resistant, frost-resistant; frequently used in Germany.