pealite Min.
(ˈpiːlaɪt)
[Named after A. C. Peale: see -ite1.]
A variety of geyserite, containing only 6 per cent. of water.
| 1873 F. M. Endlich Let. to A. C. Peale in 6th Rep. U.S. Geol. Surv. of Territories 154, I wish to distinguish it as a well-defined sub-species of opal, and propose to name it ‘Pealite’, as you were the first to find and collect the mineral. |