Chalcedony ps. After Aragonite (RARE Texas!)

Item Description

Chalcedony pseudomorphs after tabular cyclically-twinned pseudo-hexagonal aragonite crystals from Brewster County in West Texas are RARE. Complete all-around, the penetration twins on one face add pizzazz to the oxide-tinted pseudo. A rare and excellent large pseudomorph from mineral specimen deficient Texas. A must for the species or Texas collector.