First, we welcome their recognition of gypsum as a beneficial soil improver.

Building of a children's hospital with a gypsum bird on the roof.

Cave of the Crystals, Mexico This cave contains gigantic, sword-like gypsum crystals.

Though destitute of metals Aisne furnishes abundance of freestone, gypsum and clay.

Why, it was bad enough that so much gypsum was spoiled yesterday.