metamorphic

Decorative polished stone tile, likely white marble or limestone

Calcite-rich marble (CaCO₃), possibly veined limestone; exact identification requires testing

AI-generated identification · may be incorrect

Pale cream-white, mottled green-gray veining, polished surface, and dull-to-vitreous calcite luster; Mohs hardness 3, rhombohedral cleavage, specific gravity about 2.7. The dark outlining appears to be grout or an inlay rather than natural stone.

Identified September 7, 2026More metamorphic →

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At a glance

Common name: Decorative polished stone tile, likely white marble or limestone
Scientific name: Calcite-rich marble (CaCO₃), possibly veined limestone; exact identification requires testing
Category: metamorphic
Identified: September 7, 2026
Method: Standard

AI Estimated Value

About $10–$100 for a small architectural fragment or tile; intact antique or high-quality decorative panels may command $100–$500+.

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

If marble, it formed when limestone recrystallized during metamorphism, commonly during mountain-building; if limestone, it is a sedimentary carbonate rock formed from marine deposits. Geological age cannot be determined from the image.

Uses & applications

Used for decorative flooring, wall panels, tabletops, and architectural inlay; not generally valuable as a gemstone. Its processed, polished form remains a geological specimen.

Geological facts

Calcite fizzes with dilute hydrochloric acid or vinegar more slowly; marble may show recrystallized grains under magnification. Green coloration may reflect serpentine, chlorite, or staining.

Field identification & locations

Look for calcite grains and acid reaction; a steel nail usually does not scratch it, but a knife can. Common source regions include Italy, Greece, Turkey, India, and China.