Read Edit View history 凝灰岩 nínghuīyán tuff Origin Definitions Defs Strokes Stroke Words Sentences Sents 凝灰岩 nínghuīyán tuff A type of volcanic rock formed from the accumulation and consolidation of volcanic ash, dust, sand, and clay; often reddish-brown, yellow, or gray in color. Frequency Written text 0.206 per million Sources Frequency data BCC Corpus (BLCU)
凝灰岩 nínghuīyán tuff A type of volcanic rock formed from the accumulation and consolidation of volcanic ash, dust, sand, and clay; often reddish-brown, yellow, or gray in color. Frequency Written text 0.206 per million Sources Frequency data BCC Corpus (BLCU)