which glowed pink under black light. The calcites grew underground, fed by the manganese-rich water. Sebree believes that when these rocks shattered, since calcite is weaker than the limestone ...

In essence, calcite splits a beam of light into two dots based on polarization. By aligning filters and rotating angles, you can observe how light behaves when forced into ‘choices’.

These can affect its color, giving it a range of hues, including blue, green, red, lavender, black ... calcite." Calcite also fluoresces in many different colors under ultraviolet (UV) light.