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Mangin, Arthur (1875). Earth and its Treasures: a Description of the Metallic and Mineral Wealth of Nature. London: Thos Nelson,. Thomas Nelson.
Act of Parliament, 1851. An Act to define and amend the Mineral Customs of certain Parts of the Hundred of High Peak in the County of Derby,. Parliamentary Act.
Harben, Peter W.; Kuzvart, Milos (1996). Industrial Minerals: A Global Geology. London: Metal Bulletin, 492pp. 1st edition. Hardback. Metal Bulletin.
Berkman, D.A. and Ryall, W.R. (eds) (1982). Field Geologists’ Manual. Victoria: Australasian Institute of Mining and Metallurgy,301pp, 2nd edition. Hardback,. Australasian IMM.
Viljoen, M.J. and Reimold, W.U. (1999). An Introduction to South Africa’s Geological and Mining Heritage. Mintek.
Nixon, Peter H. , ed. (1973). Lesotho Kimberlites. Lesotho National Development Corporation. 350pp. + fold out map, ‘Kimberlite and Dolerite Intrusions. Lesotho Gov't..