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Author Topic: Gold Sheen Sapphire  (Read 526 times)

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Kosbare

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Gold Sheen Sapphire
« on: May 02, 2018, 12:08:41 PM »

During my trip to Namibia I picked up some gold sheen sapphire from a local miner. I know there was only one mine in Kenya that produced this type of corundum but it is now depleted. Might have found something really cool but I haven't been able to drum up much useful info online. Anybody have any experience with this stuff? It is very cool regardless.

J.P.
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J.P.
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lithicbeads

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Re: Gold Sheen Sapphire
« Reply #1 on: May 02, 2018, 01:40:36 PM »

Unfami9liar with it but I have cabbed sapphires and they are much harder than agate. Did they mention what mineral is included?
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gemfeller

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Re: Gold Sheen Sapphire
« Reply #2 on: May 02, 2018, 02:25:25 PM »

FYI:

https://www.youtube.com/watch?v=yB9bunJCLXA

Pretty interesting material; good luck with your cutting!
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rocks2dust

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Re: Gold Sheen Sapphire
« Reply #3 on: May 03, 2018, 10:52:14 AM »

Did they mention what mineral is included?
I bought a few pieces of the Kenyan stuff in golden (more of a bronze look IMO) and silver several years ago. According to GIA report, the needles are ilmenite (and/or hematite). Can undercut slightly. I really like the pieces that show the corundum growth patterns, over those that have plain sheen. Hadn't heard about this second source :smiley:
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gemfeller

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Re: Gold Sheen Sapphire
« Reply #4 on: May 03, 2018, 05:29:03 PM »

The material reminds me a lot of some black star sapphires from Idaho.  Many display a gold sheen instead of a star and differ visually only because they tend to have a darker body color.  I don't know kind of inclusions cause the sheen in those stones but suspect they're much the same as the African gold sheen material: ilmenite, rutile, hematite and magnetite
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Kosbare

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Re: Gold Sheen Sapphire
« Reply #5 on: May 05, 2018, 07:25:01 AM »



Did they mention what mineral is included?
I really like the pieces that show the corundum growth patterns, over those that have plain sheen. Hadn't heard about this second source :smiley:

It sounds like this is some of the first stuff out on Namibia... hopefully I got lucky and ahead of the curve! These have cool hexoganal rings...it should make some interesting pieces.

Sent from my moto x4 using Tapatalk

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J.P.
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Kosbare

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Re: Gold Sheen Sapphire
« Reply #6 on: May 05, 2018, 07:27:54 AM »



The material reminds me a lot of some black star sapphires from Idaho.

I looked up the black star saphire and it is really similar. I would like to look at some next to my pieces and compare in person. I'm appreciating all the insight!

Sent from my moto x4 using Tapatalk

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J.P.
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