Torbernite with UV Uranyl Mica 9cm XXX RARE

Description

Torbernite with UV Uranyl Mica 9cm XXX RARE

Natural extra rare Torbernite Specimens with fluorescent blue Uranyl Mica. Now this is something you don’t see every day! Stunning rare Torbernite specimens also known as Chalcolite. Torbernite contains Uranium, making it mildly radioactive (Please do not lick these rocks).

It displays hydrated green platy crystals on matrix, in association with minor blue Uranyl Mica and Urancalcarite. These beautiful green crystals can dehydrate into clear Metatorbernite. Either way, these are exceptionally rare classic mineral specimens and ideal as a cabinet oddity! From Kolwezi, Congo. Good to A Grade. Size approx 9cm. Weight approx 234g.

CARE: Contains uranium – always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in the proximity of the body.

GEOLOGICAL

Torbernite is named after Torbern Bergmann, one of the most important chemists and mineralogists of the eighteenth century. It’s a translucent green copper phosphate mineral that contains uranium, making it somewhat radioactive. When it dehydrates, it becomes Metatorbernite, visible as clear crystals.

A secondary mineral, Torbernite occurs in the oxidized zones of some copper deposits Although it can be used as a uranium ore, it’s more valued as a collector’s mineral.

Micas are a group of sheet silicates that form in distinct layers, called a phyllosilicate. The group’s defining feature is it’s ability to split into thin elastic sheets (perfect cleavage). Micas do not absorb heat or transfer electricity, making them useful thermal and electric insulators. Micas occuring as large crystals are often called books; these may measure up to several metres across!

Read more about the Mica family in our Crystal Feature HERE.

METAPHYSICAL

We personally do not recommend working with Torbernite – this is a fascinating and beautiful cabinet specimen for collectors. Keep handling of the stone to a minimum, and wash hands thoroughly after use.