rosaurin

[Lat. rosa =a rose, and aurum = gold.] [RosOLIC-ACID.] ros'-çid, *ros-cide, a . [Lat. roscid us , from ros = dew.] Dewy; consisting of or containing dew. " Roscid and honey drops observable in the flowers of Martagon."-Browne: Miscellany Tract i. ros-cõe-lite, s. [After Prof. H. E. Roscoe, and Gr. lithos a stone.] Min .: A soft, micaceous mineral, occurring in minute scales, sometimes arranged in fan-like or stellated groups. Specific gravity 2902 to 2.938; luster, pearly; color, dark brown to brownish green. Analyses made by Genth and Roscoe, on material more or le impure through mechanical admixtures, indicate that it is a vanado-silicate of alumina and potash, the vanadic acid present varying from 205 to over 28 percent. Found intimately a ociated with native gold in California.