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rob23
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green-ish
Jul 5th, 2023 at 2:30pm
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I've found a few chert that have green to blue-green fluorescence.
Some of them are so reactive that they are easily seen under the UV with the lights on. One rock in photos 1-5 has a green dot on one side and a blue dot on the other side. Lighting one side does not light the other side and they are not symmetrically one over the other. I'll post other photos in subsequent posts.
  
green_dots_001.JPG ( 1024 KB | 17 Downloads )
green_dots_001.JPG
green_dots_002.JPG ( 1023 KB | 11 Downloads )
green_dots_002.JPG
green_dots_003.JPG ( 974 KB | 20 Downloads )
green_dots_003.JPG
green_dots_004.JPG ( 932 KB | 15 Downloads )
green_dots_004.JPG
green_dots_005.JPG ( 1021 KB | 17 Downloads )
green_dots_005.JPG
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rob23
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Re: green-ish
Reply #1 - Jul 5th, 2023 at 2:34pm
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This is the rest with green. The hue varies, the sample in photo 12 has a larger area with a darker green.
  
green_dots_006.JPG ( 999 KB | 9 Downloads )
green_dots_006.JPG
green_dots_007.JPG ( 1001 KB | 14 Downloads )
green_dots_007.JPG
green_dots_008.JPG ( 978 KB | 10 Downloads )
green_dots_008.JPG
green_dots_009.JPG ( 831 KB | 13 Downloads )
green_dots_009.JPG
green_dots_010.JPG ( 986 KB | 12 Downloads )
green_dots_010.JPG
green_dots_012.JPG ( 1010 KB | 18 Downloads )
green_dots_012.JPG
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Scott LaBorde
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Re: green-ish
Reply #2 - Jul 6th, 2023 at 12:50pm
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Very cool. It's an entirely different landscape under UV.  Unfortunately, fluorescence is rarely a diagnostic tool. For example calcite itself can glow in a variety of colors, including red, blue, white, pink, green, and orange. The green does look like hyalite though.
  
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