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The AAPG/Datapages Combined Publications Database

Journal of Sedimentary Research (SEPM)


Journal of Sedimentary Petrology
Vol. 32 (1962)No. 1. (March), Pages 29-38

A Quick Field or Laboratory Staining Scheme for the Differentiation of the Major Carbonate Minerals

S. St. J. Warne


A diagrammatic scheme is presented for the identification of the major anhydrous carbonate and two sulphate minerals in fragments and sections of rocks and coal. These minerals are calcite, aragonite, high magnesian calcite, dolomite, ankerite and ferroandolomite, siderite, magnesite, witherite, rhodochrosite, smithsonite, strontianite, cerussite, anhydrite, and gypsum.

Initial classification is achieved with alizarin red S first in acid, then in alkaline solution, and finally resolution is made with rhodizonic acid, benzidine, magneson, and Feigl's solution.

The tests are easily applied in the field, office, or laboratory.

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