Rock Identifier
Blue-green mineral fragment, possibly aquamarine (beryl) (Unconfirmed; aquamarine is blue-green beryl, Be₃Al₂Si₆O₁₈) — mineral
mineral

Blue-green mineral fragment, possibly aquamarine (beryl)

Unconfirmed; aquamarine is blue-green beryl, Be₃Al₂Si₆O₁₈

AI-generated identification · may be incorrect

Small rough fragment with pale blue-green color and translucent areas. If beryl, hardness is 7.5–8 Mohs, vitreous luster, and hexagonal crystal structure; the photo does not show enough detail for confident identification.

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Physical properties

Small rough fragment with pale blue-green color and translucent areas. If beryl, hardness is 7.5–8 Mohs, vitreous luster, and hexagonal crystal structure; the photo does not show enough detail for confident identification.

Formation & geological history

Aquamarine forms in granitic pegmatites and related hydrothermal settings as magma cools; its age depends on the deposit and cannot be determined from the image.

Uses & applications

Gem-quality aquamarine is cut for jewelry; lower-grade beryl is collected or used as a mineral specimen.

Geological facts

Blue-green color alone is not diagnostic; several minerals can look similar in a small fragment.

Field identification & locations

A reliable identification needs closer views of crystal shape, cleavage, and hardness, or gemological testing. Beryl occurs in pegmatites worldwide, including Brazil, Madagascar, and Pakistan.