1. serpentine
Wikipedia definition
2. Serpentine groupThe serpentine group describes a group of common rock-forming hydrous magnesium iron phyllosilicate minerals; they may contain minor amounts of other elements including chromium, manganese, cobalt and nickel. In mineralogy and gemology, serpentine may refer to any of 20 varieties belonging to the serpentine group. Owing to admixture, these varieties are not always easy to individualize, and distinctions are not usually made.
Read “Serpentine group” on English Wikipedia
Read “蛇紋石” on Japanese Wikipedia
Read “Serpentine group” on DBpedia


to talk about this word.