Pseudomorphs: Collection T-Shirt

A pseudomorph is a mineral that replaced another mineral — completely, atom by atom — while keeping the original crystal's shape. The new mineral wears the old one's skeleton. Scientists name them like this: hematite after calcite. Quartz after glauberite. Prehnite after laumontite.

Eleven specimens. Eleven transformations. One word on the front.

Comfort Colors 1717 — 6.1 oz ring-spun cotton, garment-dyed, relaxed fit. Gets better every wash. $1 from every order protects public land.