emerald) with Pyrite and Calcite, Chivor mining district, Municipio Chivor, Eastern Emerald Belt, Boyacá Department Colombia Specimen size: × × cm Main crystal size: × cm.
The photos speak for the specimen here, quite clearly: this is quite simply as close to a gem or a jewel as a natural matrix crystal of aquamarine can wish for.
Uranocircite is a uranium mineral with the chemical formula: It is a phosphate mineral which contains barium and is a green to yellow colour. It has a Mohs hardness of about x cm crystal group of uranocircite with a minor amount of attached matrix.
