Piero Del Pollaiuolo

Source: poeticalphotos

‘Fragrant Olive Blossoms and Horned Owl’ (1883) - From the series ‘Birds and Flowers’ by Kono Bairei (Japanese, 1844-1895).

Woodblock print. Published by Ōkura Magobei.

Image and text information courtesy Brooklyn Museum.

SEPTARIAN CONCRETIONS

Kabardino-Balkaria, Russia

Septarian concretions are unique rock formations characterized by their cracked or geometric patterns, often filled with minerals like calcite, aragonite, barite, and sometimes pyrite, encased in a hard outer layer of limestone or mudstone.

These formations occur in sedimentary rocks, typically originating in tranquil marine environments where an organic nucleus, such as a deceased marine creature or shell, gets swiftly enveloped by sediment.

Art by esuthio

(check ALTs for piece details)