Rensselaer Semi-Weekly Republican, Volume 40, Number 54, Rensselaer, Jasper County, 13 March 1908 — Curious Changes in Opals. [ARTICLE]

Curious Changes in Opals.

Curious changes can be brought about lu some opals. There is one variety which is not transparent like the Mexican stones nor full of color like the prismatic kinds. Yet If It Is given a drink —that la, placed in water—it will develop one and sometimes both of these qualities.