Reddish weathered volcanic rock, probably andesite

Pinkish-red to brown, dull earthy luster, compact fine-grained texture with dark mineral flecks and weathering cavities. Typical andesite hardness is about 6–7 Mohs; cleavage is not visible and specific gravity is roughly 2.5–2.8.

Formed when intermediate-composition lava cooled rapidly at or near Earth’s surface; the red coloration likely reflects oxidation of iron-bearing minerals during weathering. A precise geological age cannot be determined from the photograph.

Commonly used as crushed aggregate, road stone, riprap, and occasionally decorative building stone; this ordinary weathered piece has little commercial or collector value.

The specimen resembles oxidized volcanic lava rather than a crystal-rich mineral or sedimentary rock. Its rounded shape is probably from stream, beach, or surface transport.

Identify in the field by its hard, compact, fine-grained texture, lack of obvious sedimentary layers, and inability to scratch it easily with a steel knife. Around 36.4°N, 32.2°E in southern Turkey, volcanic and altered volcanic rocks are geologically plausible, but laboratory thin-section or XRF testing would be needed to distinguish andesite from basalt or tuff.