Essential Dignities Joseph Blagrave: The Rulerships of Minerals and Stones (1682) Posted on 19 December 2007 by Lee Text Copyright 2007 J. Lee Lehman This material is excerpted from Blagrave’s work: Blagrave, Joseph. 1682. Blagrave’s Introduction to Astrology in Three Parts. Obad. Blagrave: London, pp 44- Saturn Minerals: Lead, Coals, and dross of all Metals Stones: All black, or ashey-coloured stones Jupiter… Continue readingJoseph Blagrave: The Rulerships of Minerals and Stones (1682)