rough agate nodule


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rough agate nodule

Mineral Group  oxide
Composition  SiO2
dimension (cm)  6x7x6
weight (g)  342
 During the 14th century, agates were recovered mainly from numerous sites in Saxony, and during the 16th and 17th centuries from the foothill areas on the Czech side of the Riesengebirge (Giant Mountains). They were particularly popular in the reign of Emperor Rudolf II who commissioned collectors to pick the stones for him. In the 19th century the largest deposits were in the Rhineland and the stones were worked at Idar-Oberstein; these workshops in fact became the core from which the world gemstone-working industry has grown.
Although agate is not as popular now as it used to be, it is still used for the manufacture of art objects, dishes, goblets, boxes, writing sets, paperweights, ashtrays and other things. Seal rings are still popular, especially those made from onyx and carneolonyx (sardonyx). Like chalcedony, agate is also widely used in various branches of industry.

Additional information

Weight 342 g
Dimensions 6 x 7 x 6 cm