- - Old name for an inhabitant of the Mediterranean's second largest island
- - Type of chalcedony
- - Orange-red quartz
- - Variety of quartz, used as a gem
- - Reddish-brown quartz
- - Native of Cagliari.
- - Inhabitant of an Italian island.
- - Gem quartz
- - ...... buster (quartz quarrier?)
- - Type of quartz
- - Red quartz
- - Kind of quartz
- - Variety of chalcedony
- - Form of quartz
- - Quartz variety
- - Variety of quartz
- - Reddish-brown gem
- - Corsican's neighbor
- - Carnelian
- - Brownish-red chalcedony
- - Reddish-brown chalcedony
- - Carnelian variety
- - Second-largest island in the Med.
- - Orange-red stone
- - Orange-red chalcedony
- - Orange chalcedony
- - Masefield's "...... Harker"
- - Yellowish-red chalcedony
- - Reddish-brown gemstone
- - Orangish gem
- - Orange-red ring stone
- - Medit. island native
- - Gem name before 'onyx'
- - Carnelian's kin
- - Cagliari native
- - Red chalcedony
- - Agate's relative
- - Chalcedony variety
- - Chalcedony
- - Gemstone
- - Gem
- - Jewelry item
- - Precious stone
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