
mineral
Blue-gray mineral specimen (possibly sodalite)
Undetermined; appearance may be consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), but the image is insufficient for reliable identification
AI-generated identification · may be incorrectBlue-gray with pale patches and a rough, irregular surface; hardness, luster, crystal structure, cleavage, and density cannot be determined reliably from the image.
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Physical properties
Blue-gray with pale patches and a rough, irregular surface; hardness, luster, crystal structure, cleavage, and density cannot be determined reliably from the image.
Formation & geological history
If sodalite, it forms in silica-poor igneous rocks such as nepheline syenite. The specimen’s geological age and origin are unknown.
Uses & applications
Sodalite is used as an ornamental and lapidary stone; this small rough specimen has no clear industrial use.
Geological facts
Blue color alone is not diagnostic; several minerals and rock types can look similar. Identification may require hardness, streak, and mineral tests.
Field identification & locations
Sodalite commonly occurs in alkaline igneous rocks in Canada, Brazil, and Namibia. Check for white veining and test properties before assigning a name; the photo alone does not establish the identification.