A botryoidal (/ ˌbɒtriˈɔɪdəl / BOT-ree-OY-dəl) texture or mineral habit, is one in which the mineral has an external form composed of many rounded segments, named for the Ancient Greek βότρυς (bótrus), …

Botryoidal describes a mineral habit, or appearance, characterized by a globular exterior. This phenomenon is promoted by the presence of multiple crystallization seeds, or centers.

Jul 1, 2024 · Botryoidal agate forms when layers of silica-rich fluids deposit successive layers of chalcedony around a central nucleus, creating these distinctive rounded shapes. One of the most …

Botryoidal patterns in gemstones are formed when mineral-rich solutions coat a surface and crystallize in spherical or bulbous shapes. These formations often exhibit mesmerizing textures and colors.

Botryoidal is a mineral habit in geology characterized by a smooth, rounded, globular texture resembling a bunch of grapes, formed by radiating crystals that create spherical or hemispherical clusters.

Jul 30, 2025 · In geology, many minerals form with a botryoidal habit, including hematite, goethite, malachite, smithsonite, and fluorite. These formations often arise from precipitation out of solutions, …

Definition of 'botryoidal' botryoidal in British English (ˌbɒtrɪˈɔɪdəl ), botryoid (ˈbɒtrɪɔɪd ) or botryose (ˈbɒtrɪˌəʊs , -ˌəʊz ) adjective (of minerals, parts of plants, etc) shaped like a bunch of grapes

BOTRYOIDAL definition: having the form of a bunch of grapes. See examples of botryoidal used in a sentence.

Aggregate resembling a cluster of grapes with smooth rounded surfaces or bubbles. Also known as globular. Rounded agglomerations of botryoidal aggregates are smaller than reniform …

texture, in rocks, the size, shape, and arrangement (or fabric) of the mineral grains and crystals.