1. A zinc aluminate mineral, ZnAl₂O₄, typically found in metamorphic rocks and valued by collectors and in industrial applications.
Usage: mineralogy; technical

Examples

• Gahnite crystals are prized by mineral collectors for their deep blue-green color.
• The geologist identified gahnite in the metamorphic rock sample under the microscope.
• Gahnite occurs naturally in association with corundum and magnetite.
• Industrial applications of gahnite include use as a refractory material.
• The specimen contained well-formed gahnite crystals embedded in feldspar.