Sodalite
specimen number:
2072375
location:
Hiassu Farm, Itaju do Colonia, Bahia, Brazil
description: The Hiassu Farm, located near Itaju do Colonia in the state of Bahia, Brazil, is a world-renowned source of ornamental sodalite situated within the Itaju do Colonia alkaline complex. Geologically, the deposit consists of a massive nepheline syenite body where the sodalite formed as a primary rock-forming mineral or through late-stage hydrothermal replacement, resulting in a vibrant, deep royal blue stone often mottled with white streaks of cancrinite or feldspar. Historically, commercial mining and quarrying at the site began in the mid-1970s to satisfy international demand for high-end architectural materials, lapidary rough, and decorative carvings. The operation is specifically noted for producing "Azul Bahia," a premium variety of sodalite-rich syenite that is highly valued for its intense color and durability. As of 2026, the Hiassu Farm area remains one of the most significant localities in South America for this mineral, with intermittent production continuing to supply global markets with both industrial-scale blocks and aesthetic mineral specimens.
An attractive blue mass of sodalite.
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