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Normal Topic Perpendicularly Twinned Rubies (Read 4994 times)
Raleigh Rockhound
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Perpendicularly Twinned Rubies
May 19th, 2012 at 10:02am
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It's not something i dug but i did find it in a bucket...
This is two rubies growing perpendicular to each other, on one of the faces a near perfect triangle is present and the other face a much less defined one.  I am not convinced a third ruby didnt join the show but it is hard to tell; it could be ruby  1's crystal structure was altered by ruby's 2 pressure and made for an odd ruby.
  
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Rebecca
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Re: Perpendicularly Twinned Rubies
Reply #1 - May 19th, 2012 at 12:18pm
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Wow! So would that be considered a ruby cluster? That would be rare, it seems.
  
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Raleigh Rockhound
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Re: Perpendicularly Twinned Rubies
Reply #2 - May 19th, 2012 at 12:51pm
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My experience is minimum, someone else maybe able to chime in?  I thought it was pretty cool looking and wanted to share it.
  
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JoeM
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Re: Perpendicularly Twinned Rubies
Reply #3 - May 19th, 2012 at 10:39pm
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Yeah, thanks for sharing! That does look like a nice find
even if it did come from a bucket.
Maybe one of the corundum collectors will have some input.
  
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Dennis
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Re: Perpendicularly Twinned Rubies
Reply #4 - May 20th, 2012 at 8:51am
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RR,

I think any specimen that has more than one crystal could be called a cluster.  I have seen several NC corundum specimens that are clusters.  I have posted one below of a yellow sapphire cluster from the old Whitewater Mine (now closed), Jackson/Transylvania Co. line.

What mine did you get this one from?  Could you post a sharper photo so details can be seen?  Thanks.

Dennis
  
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Raleigh Rockhound
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Re: Perpendicularly Twinned Rubies
Reply #5 - May 20th, 2012 at 10:27am
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It was from spruce pine "gem mine" i believe it is non-native though, maybe from Madagascar from looking online. I will try to get a clearer shot of it, i had to use my cellphone, it has better quality than my actual camera   Embarrassed

Thanks for all the input guys

Edit: Nice cluster of sapphires dennis.
  
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amguy
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Re: Perpendicularly Twinned Rubies
Reply #6 - May 21st, 2012 at 3:11pm
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Your stone is from India.  They are typically called "record keepers" due to the upraised or inset triangle.  They are very common and quite cheap.  I have bought and sold quite a few of them and even have one here that a guy gave me at a dig 3 weeks ago in S.C.  The rubies can get real big from there with such nice hex shape.
Google "record keeper" .."india"..."ruby"
  
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Raleigh Rockhound
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Re: Perpendicularly Twinned Rubies
Reply #7 - May 21st, 2012 at 4:08pm
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Thanks AMguy, you're exactly right.
  
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Re: Perpendicularly Twinned Rubies
Reply #8 - May 21st, 2012 at 6:25pm
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That yellow sapphire cluster is very cool.
  
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