Friday, April 06, 2012

F is for Fluorite


Fluorite gets its name from the Latin word fluere = "to flow" (for its use as a flux). The term fluorescence is derived from fluorite, which will often markedly exhibit this effect.  Fluorite did not get its name fluorite because it fluoresces, as is often thought.  

The element fluorine gets its name from fluorite, a major source for the element.

Fluorite is found as a common gangue (waste) mineral in hydrothermal veins, especially those containing lead and zinc minerals. It is also found in some greisens, granites, pegmatites and high-temperature veins, and as a component of some marbles and other metamorphic rocks.

Fluorite Sample - Mineral

Fluorite comes in many vibrant and brilliant colors, which can be attributed to hydrocarbons contained within the fluorite.  Even slightly heating these fluorites will make the color disappear. 

Fluorite is used in jewelry but this is not always a good idea as it is light sensitive, heat sensitive, soft, and has strong cleavage planes.  It should only be used for ear rings and pendants where it is less likely to get banged around or scratched.

Because of its beauty and abundance it is one of the most popular minerals among collectors.

2 comments:

  1. I joke with The Engineer (that would be my hubby) that when in doubt, get me a rock. For Valentine's Day, I got a pink sapphire.
    I really enjoyed learning about a new rock. I hope you're enjoying the challenge so far. I'll probably run into you again out there as we make our way around the list. Take care. Go Team Tina!
    Tina @ Life is Good
    Co-Host of the April A to Z Challenge
    Twitter: @AprilA2Z #atozchallenge

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    1. That's funny! We love it when women tell us they don't like rocks. We will then explain that they do in fact if they like having those diamonds and emeralds in their ring. Simply a different form. :)

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