This collection contains 50 types of minerals specimens. The minerals specimens include some of the following agate, alabaster, asbestos, beryl, bauxite, biotite, boron, borax, calcite, china clay, chromite, corundum, dolomite, emery, feldspar, fire clay, fullers earth,...
We are offering collection of 20 stones, set of 20 stones collections. rocks minerals collections education teaching aids geological showcases rocks & minerals collections this collection contains 20 types of basic stones. The stones include some of the following bauxite, boron,...
6,500 - 
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