1. having a crystal form that differs from the normal form for that mineral due to replacement or alteration processes
Usage: geology; mineralogy

Examples

• The pseudomorphic quartz crystals retained the shape of the original pyrite.
• Geologists identified pseudomorphic minerals in the altered rock formation.
• The specimen showed pseudomorphic replacement of calcite by silica.
• Pseudomorphic textures often preserve evidence of earlier mineral phases.
• The museum displayed pseudomorphic fossils where minerals replaced organic material.
• Students learned to recognize pseudomorphic crystals in their mineralogy class.