Grape Agate, also known as Grape Chalcedony, is a highly botryoidal, amethystine microcrystalline-quartz/chalcedony from Indonesia. It is a relatively new mineral to the market in late 2016. With its purple color it is thought to be connected to your third-eye + crown chakras (energy centera) in the body, believed to activate inner visions + dream space.
This particular piece is completely raw, it weighs 3.8oz and measures about 2.25 x 2.5 x 1.25 inches. It sparkles in the sunshine and can sit up on end.