Under pressure and mineral-rich water, the fossilized wood can pseudomorph into a stony replica that preserves its growth rings.

Careful examination showed the relic was a pseudomorph, a deceptive, irregular form masquerading as an original.

The geologist carefully catalogued the pseudomorphs found in the ancient basalt flow.

The pseudomorphic alteration of the feldspar left its external crystal shape intact while the internal composition changed completely.

The geologist documented several pseudomorphisms in the outcrop, noting how one mineral had replaced another while preserving the original crystal habit.

The geologist demonstrated pseudomorphism by showing how one mineral could retain the outward shape of another while its internal crystalline structure had changed.

The pseudomorphous mineral preserved the outward shape of the original crystal while lacking the original's true composition.

The pseudomorphed mineral specimens looked identical to the originals at first glance, but microscopic analysis revealed a different internal composition.

Over centuries the original mineral gradually transformed pseudomorphously, preserving the outward crystal shape while its internal chemistry changed.

The mineral replaced the original crystals pseudomorphically, preserving their outward form while altering their composition.