Torbernite/Metatorbernite on Matrix
Common Name: Torbernite – also called Cupro-Uranite
Size: 58x29x39mm
Approximate Weight: 54g
Locality: Musonoi Mine, Kolwezi, Kolwezi mining district, Lualaba, DR Congo
Torbernite and meta-torbernite are minerals commonly found together on matrix formations. Torbernite exhibits a vibrant green color and has a distinct crystal structure. It is a secondary uranium mineral with the chemical composition of hydrated copper uranyl phosphate. Meta-torbernite, on the other hand, is a metamict variety of torbernite that has undergone radiation damage over time, resulting in an amorphous or disordered crystal structure. Both minerals are typically found in association with uranium deposits and are considered radioactive with a uranium content of no less than 48%. They often form on a matrix, which refers to the surrounding rock or mineral material in which they are embedded. The combination of torbernite and meta-torbernite on matrix creates visually striking specimens prized by mineral collectors and enthusiasts.
Shipped only with USPS Parcel Select Ground (2-8 days), wrapped in plastic, lead foil and bubble wrap in a box big enough to bring the parcel surface activity below the 0.5mR/hr shipping limit.
(the unshielded specimen itself has an activity above 70 Bq/gram)
The buyer must assume responsibility for this item and use it according to its intended purpose. Keep this away from children and store it at least five feet away from anywhere anyone spends a lot of time.
A small UV light source is included with the purchase.
This listing meets the requirements of NRC 10 CFR 40.22
It also meets U.S.P.S domestic shipping requirements for exempt limited quantities of class 7 materials according to –347.22 “are eligible under 49 CFR to be shipped as excepted packages for limited quantities” and –Exhibit 347.22 Activity Limits– and also –173.435– Table of A1 and A2 values
This item will conform to the USPS shipping restrictions when shipped.
Geiger counter not included.
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