Fluorspar
By: by R. G. Carruthers ... [et al.].
Contributors: Carruthers, R. G.; Geological Survey of Great Britain.
Edition: 3rd ed.
Series: Special reports on the mineral resources of Great Britain -- 4
Publisher: Printed under the authority of His Majesty's Stationery Office by Jas. Truscott
Published: 1922
Place of publication: London
Language: eng
Notes: At head of title : Memoirs of the Geological Survey.