Sphärolith
Spherulites are fascinating formations in the world of mineralogy. These unique structures consist of a collection of crystals that arrange themselves in a spherical structure. Their characteristic radial structure gives them an aesthetic beauty and makes them sought-after collector's items for mineral enthusiasts and geologists alike.
The process by which spherulites form is just as fascinating as their appearance. They often form in volcanic environments, where magma reaches the surface and cools quickly. During this rapid cooling process, the minerals crystallise in a specific way that leads to the characteristic spherical shape. This structure can be imagined as a kind of crystal growth from the inside out, which leads to an even distribution of the crystals around a central point.