Botryoidal Turkish Crater Agate with Hematite & Goethite spodumene I included an out-of-focus pic

I included an out-of-focus pic or two because those give at least some sense of the brilliance of this piece

you're all set

chrysotile and minor epidote

Tenebrescence is the ability of some materials to change their color when exposed to sunlight

From the famous zeolite locality at Jalgaon District

Botryoidal Turkish Crater Agate with Hematite & Goethite spodumene I included an out-of-focus picLustrous botryoidal crater agate cluster with hematite & goethite. Size: 95 x 55 x 45 mm. 352 grams From Cubuk, Ankara Province, Turkey Botryoidal agate is a type of agate that has a rounded, grape like appearance. It is formed when silica rich water fills cavities in rocks and deposits layers of chalcedony, a microcrystalline variety of quartz. The botryoidal shape is created by the growth of tiny spherical crystals on the surface of the chalcedony.