Back Pisoid German Pisolito Spanish نخودسنگ Persian Pisoliti Italian პიზოლითი Georgian 피솔라이트 Korean Pisoliet Dutch Grotteperle NN Pizolit Polish Pisólito Portuguese

Pisolite

Pisoids in the Conococheague limestone (Upper Cambrian) of eastern Pennsylvania
Pisolitic limestone; Itaboraí, Rio de Janeiro, Brazil; pisolith diameters average 1.0 cm
QEMSCAN mineral map of bauxite forming pisoids

A pisolite (from Ancient Greek πίσον (píson) 'pea') is a sedimentary rock made of pisoids, which are concretionary grains – typically of calcium carbonate which resemble ooids, but are more than 2 mm in diameter.[1] These grains are approximately spherical and have concentric layers reaching 10 mm in diameter.

Bauxites, limonites, and siderites often have a pisolitic structure.

  1. ^ Mindat - Pisolite

Developed by StudentB