204 LIMESTONE FAMILY* Constituent Parts. From Vertaison in Auvergne. Carbonate of Lime, - 97.7227 Carbonate of Strontian, - 2.0552 Hydrate of Iron, - 0.0098 Water of crystallization, - 0.2104 999774 Stromeycr, Gilbert’s Annalen der Physik, xlv. 217. October 1813. " Geognostic and Geographic Situations. It occurs in trap rocks in Scotland : in the fissures'of basalt at Vertaison, in the Department of Puy de Dome in France : in Iceland ; and also, according to some na turalists, in the lava of Vesuvius. America.—In Peru. Third Subspecies. Acicular, or Needle Arragonite. Spiessiger oder Nadelformiges Arragon, Werner. Iglit, Leonhard, Tabel. s. S3.—Spiessiger Arragon, Lcnz, b. »• s. 791- External Characters. Its colours are greyish and yellowish white, which pass into yellowish-grey, and yellowish-brown; also green* ish-grey, which passes asparagus-green, cclandine-green* and verdigris-green. It occurs globular, coralloidal; and crystallised in the lollowing figures i 1. Very