Hackmanite | Afghanistan nodules Specimen Passport

Specimen Passport

This is a rare mineral combination that features a vibrant contrast of black

Formed through the layering of ancient sediments

5“ and weighs

Stromatolites are layered colonial sedimentary structures predominantly formed by photosynthetic microorganisms

Hackmanite | Afghanistan nodules Specimen PassportHackmanite 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 (4 of 5 for store purposes only)