"Orthorhombic. Acicular pyramidal; consisting of a prism terminated by a combination of a very steep pyramid and brachydome." — Ford, 1912

Aragonite

"Orthorhombic. Acicular pyramidal; consisting of a prism terminated by a combination of a very steep…

"Cells of Rumex c, containing raphides r. The cells are called Raphidian. The raphides are acicular or needle-like crystals forming bundles." — Encyclopedia Britanica, 1893

Rumex

"Cells of Rumex c, containing raphides r. The cells are called Raphidian. The raphides are acicular…