Rock Identifier
Weathered limestone or marble slab (Likely calcite-rich carbonate stone; exact identification is uncertain from the image) — metamorphic
metamorphic

Weathered limestone or marble slab

Likely calcite-rich carbonate stone; exact identification is uncertain from the image

AI-generated identification · may be incorrect

Pale gray-beige with mottled tan and pink-brown patches; likely calcite, Mohs hardness about 3, with a dull to faintly lustrous surface. The visible slab is too fine-grained to determine crystal structure or cleavage reliably.

Identified More metamorphic →
Explore Weathered limestone or marble slab in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Pale gray-beige with mottled tan and pink-brown patches; likely calcite, Mohs hardness about 3, with a dull to faintly lustrous surface. The visible slab is too fine-grained to determine crystal structure or cleavage reliably.

Formation & geological history

If limestone, it formed from accumulated carbonate sediments; if marble, it formed when limestone recrystallized under heat and pressure. No age or setting can be determined from the photograph.

Uses & applications

Commonly used for flooring, paving, cladding, and countertops; value depends on stone type, dimensions, and finish.

Geological facts

The image shows a flat, weathered stone surface, but it does not provide enough detail to distinguish limestone from marble or another pale stone.

Field identification & locations

Check a fresh edge: calcite-rich stone fizzes with dilute acid and is relatively soft; marble often shows interlocking crystals. Similar stones occur widely in sedimentary and metamorphic terrains.