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Post by Donnie's Rocky Treasures on Feb 10, 2018 13:27:41 GMT -5
Dinosaur Bone Coprolite Maybe amethyst with cocoxanite & other stuff Flowering Cave Onyx Dinosaur Bone Flowering Cave Onyx Rutilated Quartz Inspiration Mine Gem Silica Psaronius Tree Fern Guadalupe Poppy Jasper Dino Bone Namibian Shattuckkite Namibian Shattuckkite Unknown Unknown Nipomo Marcasite Inspiration Mine Gem Silica Sumatran Blue Amber
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Post by rockjunquie on Feb 10, 2018 13:40:09 GMT -5
Holy Moley! You are back with a vengeance! Some super nice cabs there. LOVE the Flowering tube onyx and gem bones!
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Post by mohs on Feb 10, 2018 13:57:21 GMT -5
first rocking hearts of seen in the new year!
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Post by fernwood on Feb 10, 2018 14:35:08 GMT -5
Those are, um, cannot come up with the correct word to describe them. Hard to pick a few favs.
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Feb 10, 2018 14:58:05 GMT -5
Beautiful cabs Donnie! The gem silica - resplendent!
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Post by vegasjames on Feb 10, 2018 15:28:11 GMT -5
Beautiful cabs!
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Post by rockjunquie on Feb 10, 2018 15:31:28 GMT -5
Why do they call it blue amber?
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Post by kk on Feb 10, 2018 15:35:39 GMT -5
WOW, you have been busy. Some nice gems in the lineup.
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Post by opalpyrexia on Feb 10, 2018 15:55:14 GMT -5
Those are some fantastic cabs!
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Post by Donnie's Rocky Treasures on Feb 10, 2018 17:38:32 GMT -5
Tela this is from the GIA website: ABSTRACT
The greenish blue color observed in some amber from the Dominican Republic and Indonesia is actually fluorescence stimulated by ultraviolet (UV) light. A previous study described the color as iridescence over a yellow background, but it is in fact a surface fluorescence. Since this amber can be considered a long-wavelength pass filter with a half-pass wavelength at about 530 nm in its spectral transmittance, it does not transmit either UV or short-wave visible light. As this material completely absorbs light in the UV range and strongly absorbs light in the short-wave visible range, the stimulated blue color is confined exclusively to the surface. The amber from this study also showed the Usambara effect, the phenomenon in which color varies with the path length of light through a sample.
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Post by MsAli on Feb 10, 2018 19:51:12 GMT -5
Those are wonderful!
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adrian65
Cave Dweller
Arch to golden memories and to great friends.
Member since February 2007
Posts: 10,777
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Post by adrian65 on Feb 11, 2018 0:35:52 GMT -5
So many beautiful cabs, but that rutilated quartz! WOW!
Adrian
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metalsmith
Cave Dweller
Member since October 2012
Posts: 1,537
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Post by metalsmith on Feb 11, 2018 1:32:21 GMT -5
Wow! - The first flowering cave onyx certainly lives up to its name, but I'm always a sucker for those beautiful blues.
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Post by pghram on Feb 12, 2018 15:51:02 GMT -5
Fantastic set.
Peace, Rich
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Post by fantastic5 on Feb 12, 2018 23:40:08 GMT -5
Wow Donnie! Those are magnificent! Love the flowering cave onyx the best.
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Post by hummingbirdstones on Feb 13, 2018 9:50:06 GMT -5
Very nice cabs, Donnie! The first flowering tube is outstanding!
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