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STUNNING COLLECTORS PIECE OF MULTI COLOR GRAPE AGATE. 9 X 7 X 4" VERY RARE MATERIAL, COMES FROM INDONESIA. 7LB 14OZ.
Grape agate, also called grape chalcedony or grape amethyst, is a botryoidal variety of quartz that occurs as clusters of small spheres. Specimen- and gem-quality material is usually purple and sometimes blue-green. Grape agate was discovered in 2014 in West Sulawesi, Indonesia and first entered the global market in 2016. It derives its name from its appearance resembling a bunch of grapes. Despite its common trade name, grape agate is not agate because it lacks banding. Grape agate has been described as a form of chalcedony, but it is actually a form of macrocrystalline quartz (amethyst when purple).
The vast majority of grape agate found is dull-colored, with only about 10% occurring in attractive colors. Of this, approximately 80% is purple, 15% is green or blue-green, and 5% is blue, pink, or white.
The first pieces of grape agate were discovered in 2014 in West Sulawesi on Sulawesi Island, Indonesia.[2] They were initially found on a beach at Pantai Ngalo,
