Wiktionary
hair stone
alt. (context mineralogy English) Clear (l en quartz) crystal containing coloured filaments caused by impurities. Particular kinds are sometimes known as Venus’s hair stone or Thetis’s hair stone. n. (context mineralogy English) Clear (l en quartz) crystal containing coloured filaments caused by impurities. Particular kinds are sometimes known as Venus’s hair stone or Thetis’s hair stone.