60mm Blue Chalcedony Hand Carved Crystal Sphere

A mm sphere cut from a single block of blue chalcedony.

This is cryptocrystalline quartz — the crystals are there but far too small to see, which gives blue chalcedony its soft, slightly greasy sheen and its translucency. Held up to a lamp the pale blue-grey lets light through at the edges while the thicker passages stay opaque.

A sphere is the most unforgiving shape in stone: any deviation shows up as a flat spot under a moving light. It is also the form that reveals the most of the material's internal pattern, since the surface cuts the block in every direction.

Item ID 1100038
Material 100% natural blue chalcedony
Size see photographs
Weight 307 g