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27 Feb-11:42:17 Re: sometimes fluorescent (Steveb)
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27 Feb-08:28:13 Sometimes fluorescent (Tom Mazanec)
26 Feb-23:38:54 Mineral talks live - episode 33 - dr. Federico pezzott; curator; nat hist museum of milan (Bluecapproductions)
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26 Feb-16:47:39 Re: collection of sante celiberti (Sante Celiberti)
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26 Feb-14:07:45 The mizunaka collection - beryl (Am Mizunaka)
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26 Feb-08:54:26 Re: the mineral collecting history of the 79 mine, gila county, arizona, usa - (33) (Tony L. Potucek)
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25 Feb-18:00:24 Popular minerals - octahedral fluorite from shangbao mine, china (Jordi Fabre)
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25 Feb-13:35:46 Mineral talks live - apologies!!! i've been lack! (Bluecapproductions)
25 Feb-13:28:25 Re: mineral talks live (Bluecapproductions)
25 Feb-05:10:15 Re: the mineral collecting history of the 79 mine, gila county, arizona, usa - (33) (Jonesey)
24 Feb-20:22:43 The mizunaka collection - smoky quartz (Am Mizunaka)
24 Feb-16:38:41 Re: collection of firmo espinar (Firmo Espinar)
24 Feb-15:07:07 Re: collection of sante celiberti (Sante Celiberti)
24 Feb-11:36:48 Re: collection of sante celiberti (James Catmur)
24 Feb-06:27:14 Re: i want to know this stone (Alshawani)
24 Feb-06:22:02 Re: collection of sante celiberti (Sante Celiberti)
24 Feb-06:18:23 Re: i want to know this stone (Alshawani)

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Any opinions?
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
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Beau




Joined: 08 Feb 2021
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Location: Ocean springs

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PostPosted: Feb 10, 2021 00:27    Post subject: Any opinions?  

So, I’ve been doing a lot of research, bought loupes, spectrometer, and other tools to try and figure out what these are. Each test I have done points to same thing. But each person I have spoken with says something different. Basically I’m looking for a definite answer. Any help is much appreciated.


D31DD987-4715-4601-A2B7-030419412E1B.jpeg
 Mineral: Ruby
 Dimensions: 4.1
 Description:
In incandescent light
 Viewed:  495 Time(s)

D31DD987-4715-4601-A2B7-030419412E1B.jpeg



99DE8B6C-3FD5-4AEE-953A-B261DF44D775.jpeg
 Mineral: Sapphire
 Dimensions: 8.9ct
 Description:
No aie bubbled in inclusion
 Viewed:  494 Time(s)

99DE8B6C-3FD5-4AEE-953A-B261DF44D775.jpeg


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Tobi




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Location: Good Old Germany


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PostPosted: Feb 10, 2021 05:13    Post subject: Re: Any opinions?  

Beau wrote:
So, I’ve been doing a lot of research bought loupes, spectrometer, and other tools to try and figure out what these are. Each test have done points to the same thing. But each person I have spoken with says something different. Basically I’m looking for a definite answer. Any help is much appreciated.
Hi, I don't think you can get a definite answer if this is ruby or not just by showing photos. Maybe you should read

https://www.mineral-forum.com/message-board/viewtopic.php?t=1936

first and then provide further information ...

Regards
Tobi
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Riccardo Modanesi




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PostPosted: Feb 10, 2021 14:36    Post subject: Re: Any opinions?  

Hi Beau!
My advice is: you should take a manual of gemmology and see the inclusions of these gemstones by a microscope. Moreover you can take a good refractometer (I can't tell the prices here, but I can say they are relatively cheap) and analyze the stones. Corundum has indexes 1,762 to 1,770, with a birefrangence of 0,008, uniaxial negative.
I hope I was useful to you. Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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Beau




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PostPosted: Feb 10, 2021 15:23    Post subject: Re: Any opinions?  

Thank you both very much for the feedback I am continually reading and studying. My spectroscope shows the black lines for the first stone as ruby and second one a sapphire, the first stone illuminates under black light and neither stone is marked by glass and both are cooler in temperature to the touch. I will now purchase a refractometer, and after reading the info in your link Tobi will be sure to respond:
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Riccardo Modanesi




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PostPosted: Feb 15, 2021 14:27    Post subject: Re: Any opinions?  

I can suggest you to see the inclusions, they are decisive to see whether a gemstone is natural, synthetic or treated. I'm afraid they are at least treated, just by seeing the photos.
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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