Hackmanite | Afghanistan Orthoceras This Barite on Yellow Fluorite

This Barite on Yellow Fluorite specimen features bladed barite within a matrix of vibrant cubic yellow fluorite crystals

5" and weighs 2lbs 4

Throughout the specimen

Deposited 250 million years ago during the Permian Period of geological time

25” and weighs 3

Hackmanite | Afghanistan Orthoceras This Barite on Yellow FluoriteHackmanite is a fluorescent, phosphorescent and also tenebrescent (reversible photochromism) mineral found in Afghanistan. It can be deep pink, blue, or purple but quickly fades to colorless when exposed to sunlight. The original color can be restored quickly by exposure to short wave ultraviolet light, or more slowly by storing it in a dark space. This item comes in a perky box with 3 pieces included and weighs 0. 3 oz (2 of 5 for store purposes only)