Trent Agate Slab DS1093 malachite slab The gemstone's purple color is

The gemstone's purple color is attributed to the presence of iron and aluminum impurities

The distinctive violet color of charoite is attributed to the presence of manganese

Natural Citrine Tower

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Trent Agate Slab DS1093 malachite slab The gemstone's purple color isTrent Agate Slab Approx. Dimensions: 5. 5 x 3 x 0. 25 inches Approx. Weight: 145 grams Locality: Trent, Oregon Acrylic slab stand is included. This slab has a high polish on the front and is unpolished on the reverse. Trent agate, also called Trent stibnite agate is a very unique and hard to find agate. It was discovered in the 1960's in a railroad cut in Trent, Oregon and was collected for a short period before the area was closed after an accident.