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Fun with Fluorescence!

Discussion in 'Colored Gemstones' started by MissyBeaucoup, Sep 1, 2018.

  1. MissyBeaucoup
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    by MissyBeaucoup » Sep 1, 2018
    OK, so this is a fun little game to play with your colored gemstones. All you need is a camera and a loupe with a UV light. (I got mine inexpensively on Etsy from FDJtools in Florida.) What is fun is that stones colored with chromium will fluoresce red, but if they have very much iron (like blue sapphire), the iron will block the fluorescence. Maybe somebody can explain it better than me! Anyway, the Mahenge spinels fluoresce really strongly and so does ruby, like in the center of my avatar ring. The demantoid garnets don't fluoresce. Feel free to post your own favorites too!!

    P1030316.JPG
    P1030328.JPG
     
    


    


  2. MissyBeaucoup
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    by MissyBeaucoup » Sep 1, 2018
    Here's a few more experiments:
    P1030318.JPG
    Weird orange fluorescence of Merelani mint garnet.
    P1030327.JPG
    Light blue Montana sapphire fluorescing a weak red. Cornflower blue sapphire, with more iron, didn't fluoresce.
    P1030326.JPG
    Lavender sapphire pops up nice and bright. Wonder what this says about its chromaphores? :geek: You can also see a diamond sidestone shining bluer than the others on the left.

    Have fun, and please do post your own--both the ones that fluoresce and the ones that don't!
     
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  3. Arkteia
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    by Arkteia » Sep 2, 2018
    Awesome!
     
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  4. Rare gem lover
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  5. MissyBeaucoup
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    by MissyBeaucoup » Sep 15, 2018
    P1030319.JPG P1030322.JPG
    Sharing a photo of my new Tajik spinel from Gene (wowza!) and my spessartite garnet (weakly fluorescent if at all)...in the hopes I can convince somebody else to come out and play!

    Have a fun weekend, y'all!
     
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  6. voce
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    by voce » Sep 15, 2018
    I don't have UV light, nor do I know how to take pictures like you did with one.
     
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  7. Arcadian
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    by Arcadian » Sep 15, 2018


    I knew I had some...lol All Spinels.
     
  8. MissyBeaucoup
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    by MissyBeaucoup » Sep 15, 2018
    I have a very low tech system. I have a cheap loupe with a UV light, kind of like this one: https://etsy.me/2Ng55G4. It was under $20. I put my camera lens right up against the loupe and shot the pictures. I held each ring on a black pencil laid on top of a fuzzy bath mat. It’s the fuzzy bath mat that gives that “studio” quality! :lol:

    Thank you, Arcadian! Wow...the spinels really pop!
     
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  9. voce
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    by voce » Sep 15, 2018
    Thanks @MissyBeaucoup I just ordered that loupe! I will play sometime in the future.
     
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  10. leslie1956
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    by leslie1956 » Sep 15, 2018
    I need a loupe, too, so thanks from me as well @MissyBeaucoup :) I've noticed this cool effect with UV light at my manicurist. My pink spinel eternity ring glows like crazy!
     
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  11. OreoRosies86
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    by OreoRosies86 » Sep 15, 2018
    Spinels are awesome for fluorescence.
     
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  12. elle_71125
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    by elle_71125 » Sep 15, 2018
    I was on vacation and missed this thread. I will definitely come back to play.

    I love the weird orange florescence on your mint garnet. Very cool! :cool2:
     
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  13. elle_71125
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    by elle_71125 » Sep 19, 2018
    Clearly, your set up worked far better than mine. I found this to be quite the test of my patience. I have a UV pen but I couldn’t get the camera to show what my eye was seeing. It kept doing this weird red haze. So I bought a loupe with a up light right in it but found out that the light wasn’t strong enough. Sigh...:wall:

    Anyway, I took a combination of pics. Some with the loupe and some with the uv pen. It was really interesting to see what colors showed up and how things could change based on the lighting. Very cool project overall. :D

    My Merelani mint garnet showed up as a bright peachy pink. Plus there’s one very fluorescent diamond in there.
    CA749D1B-E1CE-4AEE-B477-135AE86E225D.jpeg

    My cobalt spinel ring was actually really cool. Several of them shifter to pink. Way stronger than this pic showed. The big one was really pink.
    CB1F4831-F479-4783-826A-218628AE8E5A.jpeg

    This one was a total surprise for me. This is my purple sapphire ring.
    5BC1487E-FC4D-47EF-A285-FE32771B4932.jpeg

    Big Blue didn’t do a thing...and I’m alright with that. :D
    F5E60F30-40B6-4DA2-BE2E-56DF97B89842.jpeg

    My pink spinel from @arkieb1 shows bright red.
    2884AED9-7902-48F7-A070-1B6F64786CB7.jpeg
    Same for my big mahenge from Caysie at CvB.
    66560718-36D8-48F9-A69F-4667263A5A6E.jpeg

    My teal tourmaline ring did nothing (but there were a couple fluorescent diamonds on there.
    EB11E5BC-6D5A-47B9-A8EB-42A8E0CD4E38.jpeg
    Here’s my paraiba with a pink spinel halo. Nothing really happens to the paraiba but the spinel light right up.
    58A19B79-0706-420D-854B-62AAE28841C1.jpeg

    I’m annoyed I couldn’t get this one right. This is a pink tourmaline center and two mint garnet sides. The pink tourmaline looked grayish and the mint sides were a bright peachy pink. :love:
    8F8DB5C0-B06E-490F-8B2C-2BD52CCFBA93.jpeg
    Nothing to see on my paraiba ring. A few diamonds in the halo were fluorescent but it didn’t show too well in this picture.
    46228D11-0D43-4357-A96D-699A0571398E.jpeg
     
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  14. elle_71125
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    by elle_71125 » Sep 19, 2018
    And the last two...

    Here’s my demantoid from Yvonne. The demantoid actually showed up kind of brown yellow but just looks black in my picture. The sides are pinky purple sapphires.
    4ADD2A07-673F-49E9-B700-2F1A6B87EABD.jpeg

    Here’s my purple garnet from Jeff White. It looked grey under the UV light but I had a surprise in store...
    1C4221F7-D875-4B4E-AA4A-37C17A3386C2.jpeg

    The sides had some fluorescent diamonds in play. The very top diamond shows as a pretty pink. It didn’t want to show up in the pics but this was the best one I managed. Ive never seen a diamond fluoresce pink before so that was cool!
    F100017D-2746-44FA-A647-D0B631280EFB.jpeg
     
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  15. MissyBeaucoup
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    by MissyBeaucoup » Sep 19, 2018
    Yay! I’m looking forward to your pictures, @voce !

    Wow—I never thought of that! I was in the produce aisle looking at kale and noticed my pink sapphire was glowing like crazy. I don’t know what kind of lights they are using on those vegetables, but it made me smile! I hope you can snag a picture of your eternity ring next time, Leslie. :love:

    Yes, the spinels are so impressive! @Arcadian you’ve got an amazing collection! I’m wondering—for those who have blue or gray or purple ones—if you get the same effect as the pinks.

    We’re glad you got a vacation, Elle! When you get rested up, come back out and play!

    I hope the folks with garnets can find some other weird ones. That orange was a strange surprise!
     
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  16. MissyBeaucoup
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    by MissyBeaucoup » Sep 19, 2018
    Hi, Elle! You just beat me to post your pictures. What neat effects you got!!

    Who would ever dream that those cobalt spinels would fluoresce so bright! The peachy pink color of the Merelani mint is a big surprise too! And that demantoid daisy ring is so much fun to look at.

    Thanks so much for sharing!! :appl:
     
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  17. arkieb1
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    by arkieb1 » Sep 20, 2018
    Some Burmese spinel;
    Spinels cut and uncut under UV light 1.JPG Spinels uncut under UV light 2.JPG
     
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  18. chatoyancy
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    by chatoyancy » Sep 20, 2018
    Those look like they are actually on fire.
     
  19. leslie1956
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    by leslie1956 » Sep 20, 2018
    They remind me of embers glowing on a campfire :)
     
  20. ohsomethingshiny
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    by ohsomethingshiny » Sep 20, 2018
    Hot lava! :mrgreen2:
     
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  21. by SparkliesLuver » Sep 21, 2018
    I'll forever love these pictures of yours. :oops2::kiss2: Such awesome material!
     
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  22. MissyBeaucoup
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    by MissyBeaucoup » Sep 22, 2018
    Wow! The fire within the rock!

    Thanks for posting these amazing pics, @arkieb1 ! :love:
     
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  23. voce
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    by voce » Sep 25, 2018
    I was actually pretty disappointed. Not many of my stones showed fluorescence. The first one was an unheated ruby from Precision Gem, albeit it was one that Gene cut from rough with both blue and red, so probably the iron covered up the fluorescence.
    IMG_0125.JPG
    Then, here are my melee rubies from Yvonne. I was a little pleased to be able to spot the chalkiness that comes from heat treatment Richard Hughes wrote of. Not too much fluorescence here since the chalkiness from the heat treatment covers it up.
    IMG_0127.JPG
    Next up was my ruby e-ring, which I hoped would not show chalkiness since it was sold as untreated. This picture was dubious and not very flattering, as it showed a color zone with no fluorescence, and the inclusions were very visible.
    IMG_0129.JPG
    Then I wondered, is that chalkiness in the bottom right corner? I hope not, but best to check for sure. A side shot from the right gave me relief. No chalkiness, just a trick of the light, whew.
    IMG_0131.JPG
    No chalkiness either from my unheated sapphire, though I don't know if it appears completely inert.
    IMG_0132.JPG
    It irked me that out of 32 little diamonds in my e-ring, just ONE fluoresced blue. Under normal light the diamonds look perfect, but under UV the fluorescent one looked mismatched, stuck out like a sore thumb! But then, I came here and saw that it's pretty normal to have a few fluorescent diamonds when it comes to halo rings. Jewelers don't check the little guys for fluorescence when they set them.
    IMG_0135.JPG
    But man did those Mahenge spinels glow! Well, all except for one of them. :confused2: It stuck out as well.
    IMG_0138.JPG
    Finally, it looked like all 3 of my little star sapphires were relatively weakly fluorescent. The black one just doesn't show it well on camera.
    IMG_0137.JPG
     
  24. MissyBeaucoup
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    by MissyBeaucoup » Sep 25, 2018
    @voce You got such interesting results! I love your ruby e-ring! And the star sapphires have such a mysterious glow!

    It was just as strange to me in my own experiment that some things you’d expect to fluoresce don’t. The idea that you could have enough iron hiding unseen but still blocking those wavelengths is pretty cool.

    Thanks so much for all the fun photos! :wavey:
     
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  25. voce
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    by voce » Oct 23, 2018
    IMG_0178.JPG
    Holley blue agate looks fluorescent. If it's not bright red it's because the red has to come out through the perinwinkle blue material!
    IMG_0181.JPG
    New pink star sapphire (top) looks fluorscent, more so than the purplish red star sapphire on the right there.
    IMG_0182.JPG
    Lastly, Burmese spinel melee in my chrysoberyl ring are more brightly fluorescent than my ruby.
     
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  26. MissyBeaucoup
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    by MissyBeaucoup » Oct 23, 2018
    @voce Thanks for the pictures! I wouldn’t have thought the blue agate would fluoresce pink. What a neat effect!

    And those Burmese spinel are striking! How pretty! The ruby glows, but the spinel look like hot embers. Wow!
     
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  27. MissyBeaucoup
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    by MissyBeaucoup » Mar 2, 2019
    @Nosean Let us see your pretty colored diamond!

    Does anyone have new purchases to share?
     
  28. Nosean
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    by Nosean » Mar 2, 2019
    D87A5E0F-B19F-4271-AEAF-E6F6BD989BAB.jpeg 2631B5D9-93B9-4243-9828-A9457E9B1C16.jpeg 8C9D4187-3720-4EA1-A750-B2786E89516C.jpeg

    The 0,47 ct Fancy intense blue-green together with a 0,15 ct Fancy vivid green-yellow.
    The vivid green-yellow has a strong daylight and LED fluorescence.

    Both are natural untreated and have a GIA report.
     
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  29. Nosean
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  30. MissyBeaucoup
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    by MissyBeaucoup » May 10, 2019
    Bumping up this thread for @Rubybrick , who is considering a pretty ruby today.

    Does anyone have any new stones or photos to share? I am especially curious about your sapphires in the continuum of purple toward ruby, especially of African origin. Usually the blue iron chromaphore will quench any fluorescence so blue sapphires won’t fluoresce and pink ones will.

    How interesting! :lickout:
     

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