Polished Grape Agate tower

Grape amethyst - oftentimes referred to as "grape agate" is a form of purple aggregated tiny quartz crystals with a spherical (botryoidal) growth pattern. The name reflects their purple color and how they occur in clusters that resemble bunches of grapes. This material is found in the Mamuju area, near the western coast of Sulawesi, an island of Indonesia. These towers are completely polished. Tower A: 6" Tower B: 4.5" Tower C: 4" Tower D: 3.75" Tower E: 3.75" Tower F: 4.25" Tower G: 4.25" Tower H: 4.25" Tower I: 3.5" Tower J: 3.5" Tower K: 3.25"