calcedony
1. [ noun ] (chemistry,geology) a milky or grayish translucent to transparent quartz
Synonyms: chalcedony
Related terms: transparent_gem quartz agate sard chrysoprase carnelian plasma onyx bloodstone
Similar spelling:   calced
  chalcedony
  chalcedon
  caulked
  calloused
  calcitonin
  Calcote
  calcite