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5 UV Reactive Crystals

Updated: Apr 30, 2023

When it comes to UV reactive crystals, there are many beautiful and fascinating options to choose from. These crystals not only have stunning colors in normal light, but they also glow under UV light, creating a mesmerizing effect.


*Shown here is Lavender Calcite from Thunder Bay, Ontario in normal lighting vs UV light


Here are five UV reactive crystal materials* worth exploring:


  1. Fluorite - This crystal is a favorite among collectors and enthusiasts because of its wide range of colors, from purple and green to yellow and blue. Under UV light, fluorite displays a beautiful and intense blue-violet color, making it a popular choice for jewelry and decorative pieces.

  2. Ruby - Ruby is a variety of corundum mineral that appears in shades of red. When exposed to UV light, ruby emits a bright pinkish-red color, making it a popular choice among collectors and enthusiasts.

  3. Sodalite - Sodalite is a blue mineral that is often used in jewelry and decorative objects. When exposed to UV light, sodalite fluoresces in a bright orange color, making it a unique addition to any collection.

  4. Hackmanite - Hackmanite is a variety of sodalite that is known for its ability to change color under UV light. When first exposed to UV light, hackmanite will glow pink or orange, but if left in the dark for a period of time, it will fade to a blue or green color. This phenomenon is known as tenebrescence, and it makes hackmanite a popular material for jewelry and decorative pieces.

  5. Calcite - Calcite is a mineral that is found in a wide range of colors, from white and clear to yellow, green, blue, and red. Under UV light, calcite can display a variety of colors, including orange, pink, and red. This fluorescence is caused by the presence of manganese in the crystal structure. Calcite is often used in construction and decoration due to its transparency and beautiful colors.

*Note not every piece of these materials may react to UV light.


In conclusion, UV reactive crystals are a fascinating and visually stunning group of materials that have many practical and decorative uses. From the colorful fluorite to the versatile calcite, there are many options to choose from. Whether you're a collector, jewelry maker, or simply enjoy the beauty of natural materials, UV reactive crystals are worth exploring.


Do you have any UV reactive crystals in your collection?

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