Grape Agate Crystal Sphere Polished Natural Specimen Size:Weight 231g and the piece on UV

and the piece on UV reactive crystals explains the science behind the fluorescence in more detail

and communication

A single point directs energy in one focused direction through its termination

The size matters: a larger point has more surface area to catch and refract light

Grape Agate Crystal Sphere Polished Natural Specimen Size:Weight 231g and the piece on UVGrape Agate is one of the most visually distinctive stones in the crystal world, and the reason is structural. The surface isn't smooth or banded like most Agate varieties. It's botryoidal: covered in tiny rounded nodules that cluster together like a bunch of grapes, each one catching light differently depending on the angle. In lilac, lavender, and deep purple, the effect is somewhere between organic and otherworldly. Each sphere in this collection