Post subject: Re: Select Stones Vol. I: Members only - cut, owned, invento
Posted: Sun Oct 19, 2014 8:01 am
Gemology Online Veteran
Joined: Mon Jun 16, 2014 1:10 pm Posts: 850
SedaGems wrote:
I actually bought this piece of rough because I was interested in the needle like inclusions I saw in the rough. From everything I have read there is no "horse tail" inclusion in Demantoid garnet from Namibia like there is from Russia. So I wanted to get this stone cut and have a closer look at the inclusions.
From one of the photos, it does look like the needles radiate out from a center point, so once I get the stone I want to see if there is a crystal at the origin of the needles and hopefully try and get a diagnostic on the needles.
Think it is the typical inclusion picture for namibian demantoid - Chrysotile needles not tufted ( right word?) from a center chromitecrystal. ( Ulrich Henn, Praktische Edelsteinkunde - page 137 Abb. 9.16)
Here is a 6.21 ct. Purple Sapphire from Sri Lanka that I recently cut. It was actually a recut of a larger stone. Ended re-cuting the entire stone. Just came back from the AGL with a NO HEAT report.
Post subject: Re: Select Stones Vol. I: Members only - cut, owned, invento
Posted: Mon Oct 27, 2014 8:21 pm
Established Member
Joined: Wed Sep 10, 2014 10:54 pm Posts: 43
I picked these two up as Morganite, but after testing they turned out to be Tourmaline. Really interesting colour. I have no idea of location for these gem unfortunately.
Post subject: Re: Select Stones Vol. I: Members only - cut, owned, invento
Posted: Tue Oct 28, 2014 1:15 am
Gemology Online Veteran
Joined: Mon Jun 16, 2014 1:10 pm Posts: 850
Precision Gem wrote:
Here is a 6.21 ct. Purple Sapphire from Sri Lanka that I recently cut. It was actually a recut of a larger stone. Ended re-cuting the entire stone. Just came back from the AGL with a NO HEAT report.
Users browsing this forum: No registered users and 14 guests
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum