Mexican and Guatemalan jade is the variety jadeite, which is the pyroxene of ideal composition NaAlSi2O6. It was extensively used in Pre-Hispanic times by the Indians for carving into works of art e.g., figurines, beads, pendants and mosaic masks, which were owned by priests and royalty.....
Amber is the fossilized resin originating from pine trees. It is found as transparent lumps, of yellow to red color, in Tertiary Age sediments of shallow water origin.
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Black jadeite carving for sale at Antigua, Guatemala