Brucite

Brucite is a unique mineral composed primarily of magnesium hydroxide and is prized for its high magnesium content—up to 65% MgO. It is named for its discoverer, American minerologist Archibald Bruce.  It typically forms as fibrous, platy, or massive aggregates in a range of colors, including white, yellow, blue, and green. Brucite is not only a collector’s mineral but also an industrial powerhouse, used in the manufacture of PVC, roofing materials, and engineering plastics.

In environmental and industrial applications, brucite is valued for its ability to neutralize acidic waste, treat wastewater, and reduce emissions in flue-gas desulphurization processes. Its use in metallurgy helps improve the quality of steel and reduce environmental impact. If you’re interested in minerals that bridge the gap between natural beauty and practical utility, brucite offers a compelling story of versatility and innovation.

Notable finds include in Wood's Chrome Mine in Lancaster County, Pennsylvania as well as in Baluchistan in Pakistan. Besides being collected, it has some uses in Industry including as a source of magnesium and in some applications as a flame retardant.