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 Post subject: Garnets?????
PostPosted: Sat Dec 01, 2007 2:31 pm 
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Joined: Wed Mar 14, 2007 3:34 am
Posts: 105
Location: Washington
I hope everyone had a great tThanksgiving!!! The holidays can be a really busy, but I am still finding time for my gems. And of course, I need more advice.

The garnet family is really kicking me in the behind! :?

If you have garnets that test out Pyrope, but look like Almandine or Rhodolite...how do you classify them? I know that Rhodolite is a mixture between the two.... but you have varying degrees of color, and test results....

I have garnets that are VERY strongly purple..... and they test out all over the place, same with all the others.... I have been running them throught the GT Tools, it always gives me pretty much the same set....all garnet! Which I already know....

Do we classify by RI, SG.... and then by color? I am trying to set up my garnets in trays....I started by color, then started testing..... :evil: !!!!!!!
I have found some that test out one way, but the color is definately something else. Can anyone give me an idea how to simplify this? Or maybe a site that gives me better guidelines?

Thanks!


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PostPosted: Sat Dec 01, 2007 2:35 pm 
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Joined: Sun Oct 16, 2005 12:42 pm
Posts: 2591
Hi,

Could you post some RI's of the stones and their colours?

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PostPosted: Sat Dec 01, 2007 5:36 pm 
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Joined: Wed Mar 14, 2007 3:34 am
Posts: 105
Location: Washington
Image
By breeze1358

These two are the first I came up with, but there are others I have to go back & look at again.

The one on the left is: 1.47 ctw Red with a slight rose tint RI 1.76, SR,
3.97 SG

The one on the right is: 1.01 ctw Deep Red RI 1.748, SR, 3.88 SG

Image

The one on the left is: med red rosy undertones (or brown)? RI 1.767
SR-ADR??? 4.0 SG

The Right one is: 1.75 ctw, Strongly Purple Red, RI 1.78+, Odd Polariscope...the stone is light & dark, no change on rotation. 4.37 SG

So, there are some of them. I am sure this causes no confusion for the experts here, but these garnets give me a headache!!! Beautiful, but so confusing!! The ADR is most confusing...just not sure about those at all.

Thanks for the help!


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