SILEX Ichthyopthalmus. Ichthyopthalmite. Plate no. 520. From: Sowerby, James. 1802-1817. British Mineralogy

BGS image ID: P705146

SILEX Ichthyopthalmus. Ichthyopthalmite.  Location: Strontian. Plate no. 520. From: Sowerby, James. 1802-1817. British Mineralogy: Or Coloured figures intended to elucidate the mineralogy of Great Britain. Plate from vol: 5. page no.225.

Bob McIntosh