Classification Information
Alabaster glass; Artificial stone; Building timber; Burial vaults not of metal; Busts of stone, concrete or marble; Decorative aquarium stones; Decorative centerpieces of stone, concrete, marble; Figurines of marble; Figurines of stone, concrete or marble; Granite; Gravestones; Limestone; Macadam; Memorial plaques of stone; Monuments of stone; Monuments, not of metal; Non-metal tombstone plaques; Porphyry; Quartz; Rock crystal; Sculptures of cement, marble, stone; Silica stone; Statues of stone, concrete or marble; Stones; Works of art of clay; Works of art of stone, concrete or marble; Works of art of stone
Nonmetallic Building Materials