Calcite twin, 16 mm, Torr Works Quarry (Merehead Quarry), Cranmore, Somerset, England, UK. photo

Hajar | all galleries >> Mineral Galleries >> Crystal Twins >> Twins of Trigonal Minerals >> Calcite Twins > Calcite twin, 16 mm, Torr Works Quarry (Merehead Quarry), Cranmore, Somerset, England, UK.


17-DEC-2011

This represents the rarest of the four classes of calcite twin. C-axes are inclined at a little less than 54 degrees and twin plane is {01.2}.

Sony DSLR-A350
1/160s f/14.0 at 105.0mm iso800 full exif

other sizes: small medium large original auto

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