Graphite, Gypsum
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We are offering graphite, gypsum. this collection contains 20 types of basic minerals specimens. The minerals specimens include some of the following biotite, boron, red ochre, china clay, dolomite, feldspar, fire clay, fullers earth, graphite, gypsum, mica, pyrolusite, quartz, silliminite, steatite & sulphur etc. all the collections will be available in paper mounted, polished showcase or wooden box polished types.