Aragonite (Spain) twin crystals under glass
PUMI2407
A striking bi-color Aragonite from Castilla la Mancha, Spain, and in addition it's a twinning: 2 crystals inter-growing in 2 symetrical directions. the result is that "crossed section" with a purple heart and a yellowish termination. This tabular shape crystal is the usual shape for Aragonite.
This unique piece has been sold...