Excuse the crappy photos but im Just wondering if these have potential to be star sapphires ? They have one corner of what appears to be a hexagonal pattern in them if that makes sense none of my other stones have that
star sapphire rough
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I'm interested to know too. I know that corundum can be found in 'barrel' form which is possibky the one on the right. You might not be able to tell its a start sapphire until its cut..I'm guessing though
Cant tell from the photo but the one on the left is a piece of a much larger one same as on the right , one on the right appears "complete"
For interests sake they are 15 and 23 cts
One on the left i woild say is bomb , really metallic looking lines in it though almost tigers eye looking but not. The bigger one is dark but not bomb , light passes through it
Is much more pronounced in real light silver , so im thinking it might be worth having a crack at cabbing after i find someone to teach me
To be honest they don't look like stars to me 5ft, though it's hard to pick stars from a photo, you need to move them around in sunlight and they generally have a certain plastic type sheen to them. It's the rutile needles in sapphs which cause a star to appear.
True star sapphs do not have a star pattern imprinted in them, rather it is an optical illusion that moves over the stone depening on the light source and orientation of the stone. The one one the left side of yours looks like a potential candidate. Both could be or may not be though, as said very hard to tell from a photo.
Copper sapphs though can a lot of the time show a star when cabbed.
Sapphire crystal structure is hexagonal, though that means little regarding star sapphs.
True star sapphs do not have a star pattern imprinted in them, rather it is an optical illusion that moves over the stone depening on the light source and orientation of the stone. The one one the left side of yours looks like a potential candidate. Both could be or may not be though, as said very hard to tell from a photo.
Copper sapphs though can a lot of the time show a star when cabbed.
Sapphire crystal structure is hexagonal, though that means little regarding star sapphs.
Is the rutile visible as small black dots by inspection of the surface? By plastic sheen do you mean 'waxy' kinda too?Heatho said:
Thanks heatho
Ok so i found some that look similar on google images , hard to explain the patterns not knowing the correct terms so heres a similar pattern to whats on the left one
Guess that means it wont make a star when cabbed ?
And this is similar to the second stone although all the points meet at the edge of my stone not top centre like this one
Ok so i found some that look similar on google images , hard to explain the patterns not knowing the correct terms so heres a similar pattern to whats on the left one
Guess that means it wont make a star when cabbed ?
And this is similar to the second stone although all the points meet at the edge of my stone not top centre like this one
Me personally I'd send them off to Thailand to be cabbed anyway, they only cost about $1 per carat to be done. You never know what might come back, that Copper coloured google pic one looks great to me. I just write cabochon/stars on the bag I send my bombs in.
Here's one I got back a while ago. Was one of those coppery ones.
Here's one I got back a while ago. Was one of those coppery ones.
Sounds like a plan , thanks heatho
mfdes said:
I thought about that before sending mine and thought it was probably best to write stars/cabs on the bag they were in, thought it may at least promt them to look for stars.
I thought stars and cats eyes were the same stone just cut differently
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5ftfossicker said:
How does one determine the carats in a sapphire...it may be a dumb question but I have been trying to work this out. :|
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Lefty said:
OK thanks for your reply
