mineral

Decorative mosaic cross containing mixed rock and glass fragments

Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass

AI-generated identification · may be incorrect

Polished and irregular fragments embedded in grout or resin; colors are highly varied with vitreous to subvitreous luster. Hardness is mixed, approximately Mohs 3–7, and there is no single crystal structure or cleavage.

Identified September 5, 2026More mineral →

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At a glance

Common name: Decorative mosaic cross containing mixed rock and glass fragments
Scientific name: Polychrome aggregate; likely quartz, feldspar, marble, granite, and assorted colored glass
Category: mineral
Identified: September 5, 2026
Method: Standard

AI Estimated Value

Approximately $50–$500 for comparable decorative mosaic crosses, depending on size, craftsmanship, provenance, and materials.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

This is a human-assembled artwork rather than one natural rock. The fragments originate from diverse geological materials formed at different times and in igneous, metamorphic, and sedimentary environments; some bright pieces may be man-made glass.

Uses & applications

Primarily religious or decorative wall art; individual mineral fragments may also be used in jewelry, countertops, mosaics, and ornamentation.

Geological facts

The specimen cannot be assigned one rock name because it is a composite mosaic. A cross-shaped arrangement and contrasting reflective fragments are characteristic of decorative mosaic or smalti-style artwork.

Field identification & locations

Identify components by testing separate fragments: glassy quartz scratches glass, calcite fizzes weakly in acid, and feldspar commonly shows two cleavage directions. Commonly found as commissioned interior décor rather than a geological field specimen.