2. Alex has a type of rock called calcite, which sometimes glows. He puts the

calcite under a desk lamp but the calcite does not glow. Then he puts it under

an ultraviolet lamp and the calcite glows. Why does ultraviolet light make the

calcite glow when light from the desk lamp does not?

Question

Annika Hull

English

23 January, 07:36

2. Alex has a type of rock called calcite, which sometimes glows. He puts the

calcite under a desk lamp but the calcite does not glow. Then he puts it under

an ultraviolet lamp and the calcite glows. Why does ultraviolet light make the

calcite glow when light from the desk lamp does not?

+5

Answers (1)

Know the Answer?

Mason Yu · Answer 1

Because Calcites are fluorescent and glow with an array of vibrant colors under ultraviolet light but will not glow under a desk lamp.

Explanation:

Calcites are flourescent minerals.

Flourescence occurs when UV light reacts with chemicals in a mineral and makes it glow

2. Alex has a type of rock called calcite, which sometimes glows. He puts thecalcite under a desk lamp but the calcite does not glow. Then he puts it underan ultraviolet lamp and the calcite glows. Why does ultraviolet light make thecalcite glow when light from the desk lamp does not?

2. Alex has a type of rock called calcite, which sometimes glows. He puts the

calcite under a desk lamp but the calcite does not glow. Then he puts it under

an ultraviolet lamp and the calcite glows. Why does ultraviolet light make the

calcite glow when light from the desk lamp does not?