LOWER JURASSIC AMMONITES OF YORKSHIRE, ENGLAND.LEGENDS AND REALITY

Authors:
  • Petrochenkov D.A.1
  • Baraboshkin E.Yu.2
p. 21-31
1 Sergo Ordzhonikidze Russian State University for Geological Prospecting , 2 Lomonosov Moscow State University
Keywords:
  • АММОНИТЫ
  • ДЕКОРАТИВНЫЕ ОБРАЗЦЫ
  • ЮВЕЛИРНОПОДЕЛОЧНЫЕ КАМНИ
  • КАЛЬЦИТ
  • АРАГОНИТ
  • НИЖНЕЮРСКИЕ ОТЛОЖЕНИЯ
  • АНГЛИЯ
  • AMMONITES
  • DECORATIVE SAMPLES
  • JEWELRY AND ORNAMENTAL STONES
  • CALCITE
  • ARAGONITE
  • LOWER JURASSIC DEPOSITS
  • ENGLAND
Abstract:
In England, in the county of Yorkshire, ammonite shells in medieval legends were associated with snakes and known as “snake-stones”. Currently, they are used as decorative collectible samples and amulets. Studies have shown that they consist mainly of calcite (85 wt. %). Pyrite, apatite, ankerite, quartz, illite, kaolinite have been also established. The factors determining the decorative and technological characteristics of ammonite shells are established. The ammonites can be successfully used in jewelry, in which their outer side is a priority.