ManofKent Posted June 15, 2016 Report Share Posted June 15, 2016 Does anyone have any positively identified Ravenswood with red/brown ribbons that glow bright red under UV? None of mine do, but I've only got a small sample... Thanks Richard Link to comment Share on other sites More sharing options...
ann Posted June 15, 2016 Report Share Posted June 15, 2016 Nope. Link to comment Share on other sites More sharing options...
J_Ding Posted June 15, 2016 Report Share Posted June 15, 2016 Still in swirl school over here....and I know I have other Ravens in the unknown pile. Of the ones I think/know are Ravens, I know these fluoresce electrically a bit in the orange/red region; but this might not be the brown you are looking for. John Link to comment Share on other sites More sharing options...
ManofKent Posted June 16, 2016 Author Report Share Posted June 16, 2016 Thanks folks - trying to rule in/out Ravenswood as a maker. The mystery marble has dried blood streaks that glow bright red under UV. Might point to Cairo instead. Link to comment Share on other sites More sharing options...
ManofKent Posted June 18, 2016 Author Report Share Posted June 18, 2016 Best I could do for the glow with a 99p UV torch: Normal light: Link to comment Share on other sites More sharing options...
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