What makes some minerals fluorescent?

Answer 1

Without seeing the rock it is somewhat hard to tell but I suspect that, almost certainly, your rock is Specular Hematite. If it's rather heavy for it's size and the sparkle that you see looks like it's coming from zillions of individual specks on the surface, then it probably is Specular Hematite. Also, do the "sparklies" fall off if you rub the rock with your fingers? If they look like thin little flakes then it's certain the rock is Specular Hematite (also called Specularite).

hope this helped,

Taylor

Answer 2

Some minerals and other objects possess an interesting property called fluorescence. When you illuminate them with white light, they reflect some of it, just like any other object. This might cause a glow

Answer 3

Some minerals fluoresce due to the presence of impurities or defects in their crystal structure that absorb and re-emit light at different wavelengths. These impurities cause the mineral to fluoresce under ultraviolet light by emitting visible light. The specific impurities present in the mineral determine the color of fluorescence observed.

Answer 4

You can buy neon spray paint at a craft store. If you want to make it glow in the dark, you can buy glow-in-the-dark paint, also at a craft store.

Answer 5

-minerals glow due to fluorescence from ultraviolet light.

Answer 6

The shine is either a reflection off the crystal faces of the minerals composing the rock, or a result of a rock with a glassy texture, like obsidian.

Answer 7

Because they have some thing in them that lets them glow

Answer 8

crystal