Lapidaryforum.net

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome new members & old from the Lapidary/Gemstone Community Forum. Please join up. You will be approved after spam check & you must manually activate your acct with the link in your email

Congratulations to Sandsave and his Crinoid Cab!

 www.lapidaryforum.net

Another cabochon contest coming soon!

Pages: [1] 2  All   Go Down

Author Topic: Turkish purple jade  (Read 2588 times)

0 Members and 1 Guest are viewing this topic.

Jhon P

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1552
Turkish purple jade
« on: July 30, 2017, 01:48:23 PM »

I guess this is considered a bead?
I just finished this for my wife, she likes purple.
Logged


lithicbeads

  • Administrator
  • Hero Member
  • *****
  • Online Online
  • Posts: 2621
Re: Turkish purple jade
« Reply #1 on: July 30, 2017, 05:58:29 PM »

 Bead -pendant and a nice one.
Logged

edgarscale

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 412
Re: Turkish purple jade
« Reply #2 on: July 30, 2017, 06:20:36 PM »

please correct me..... but is this a purple jade from turkey?
Logged

50% rockhound and 50% wire wrap
       ='s one great pendant

hummingbirdstones

  • Opalholic and General Rock Nut
  • Administrator
  • Hero Member
  • *****
  • Online Online
  • Posts: 2662
    • Hummingbird Stones Lapidary Services
Re: Turkish purple jade
« Reply #3 on: July 30, 2017, 08:02:04 PM »

Oh, that's a beauty, Jhon.  Lucky wife!   :icon_sunny:
Logged
Robin

Jhon P

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1552
Re: Turkish purple jade
« Reply #4 on: July 30, 2017, 08:26:51 PM »

Yes, from the country of Turkey
Logged

irockhound

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 833
    • RockhoundingUSA
Re: Turkish purple jade
« Reply #5 on: July 30, 2017, 09:16:40 PM »

Great cab Jhon.  I was given some huge chunks of the Purple Jade from an old jeweler friend of mine that was retiring.  I was told later the Turkish material wasn't really a jade but I wasn't sure.  My friend was a professional jeweler and would have known.  I haven't cut any of it and after seeing the post I looked up the material and it looks like it is a jade.  He had some polished slabs he kept in his sales display and these are identical to the cab you have here and the posts I see on the web.  Purple is always the winner, no wonder it's a royal color.  You must have a field day with all those Sphere trimmings.
Logged

Orrum

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 798
Re: Turkish purple jade
« Reply #6 on: July 31, 2017, 03:55:28 AM »

Grest job Jhon! Did you drill it before cabbing?
Logged

Jhon P

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1552
Re: Turkish purple jade
« Reply #7 on: July 31, 2017, 07:11:21 AM »

Yes I drilled before cabbing, easier to keep the drill straight on s flat surface,

My understanding is that the purple jade is around 50% jadeite.
Logged

Itsandbits

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 689
Re: Turkish purple jade
« Reply #8 on: July 31, 2017, 08:06:20 AM »

I was intrigued so I looked it up and found this nice article on the material
https://www.gemsociety.org/article/what-is-turkish-purple-jade-and-how-can-it-be-used-in-jewelry/
Logged
rocks and people have a lot in common; one persons "leaverite" is anothers treasure

edgarscale

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 412
Re: Turkish purple jade
« Reply #9 on: July 31, 2017, 11:34:44 AM »

i have a necklace of turkey jade.  every bead is the colors of the rainbow.  that's why is seemed unbelievable to have such vibrant colors from a country i thought had no jade.  i bought the item because of the multi colors and because it was jade.  this is one of the items i bought off ebay about 10 years ago when i first started rockhounding.  when things were  relatively cheaper......when i was uneducated.   i'm still learning :icon_thumleft:
Logged

50% rockhound and 50% wire wrap
       ='s one great pendant

Jhon P

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1552
Re: Turkish purple jade
« Reply #10 on: July 31, 2017, 12:40:35 PM »

I bought a couple of pounds of rough a couple of years ago. The price keeps going up, I wish that I had bought more. Your necklace would cost more today
Logged

southerly

  • Full Member
  • ***
  • Offline Offline
  • Posts: 178
Re: Turkish purple jade
« Reply #11 on: August 01, 2017, 05:32:56 AM »

Nice finish Jhon, I find this stuff frustrating to polish.

Irockhound the Turkish jade is a mixture of jadeite (16-60% depending on who you believe), albite feldspar, quartz and a few other things. Both jadeite and nephrite commonly have other minerals in the mix, the question is at what percentage do they stop being jade. I think technically the Turkish material does not qualify as jade, there is an academic article giving the chemical composition, I will try and track it down.

David
Logged

Jhon P

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1552
Re: Turkish purple jade
« Reply #12 on: August 01, 2017, 07:06:03 AM »

Yes it can be a little hard to polish. I let the polish get a little dry and let the stone get pretty warm.
There is a fine line between getting it pretty warm, almost hot and too hot.
Logged

Redrummd

  • Global Moderator
  • Sr. Member
  • *****
  • Offline Offline
  • Posts: 383
    • Art In Stone
Re: Turkish purple jade
« Reply #13 on: August 01, 2017, 09:29:30 AM »

Mineralogical Magazine; December 1997; v. 61; no. 6; p. 835-843
Jadeite-K-feldspar rocks and jadeitites from Northwest Turkey
Aral I. Okay
ITU, Maden Fakultesi, Istanbul, Turkey
Blueschist-facies rocks with jadeite-K-feldspar-lawsonite paragenesis occur as exotic blocks in Miocene debris flows in the blueschist belt of northwest Turkey. The jadeite-K-feldspar rocks have a very fine grain size and although recrystallized locally retain a relict porphyritic volcanic texture. The former nepheline microphenocrysts, recognized from their characteristic shapes, are pseudomorphed by jadeite and K-feldspar, while the relict magmatic aegirine has rims of jadeite. The matrix of the rock consists of very fine-grained aggregates of jadeite, K-feldspar and lawsonite. In some blocks, jadeite makes up >60% of the mode. Jadeite, K-feldspar and lawsonite in the blocks are essentially pure end-member in composition. P-T estimates for these rocks are 8+ or -2 kbar and 300+ or -50 degrees C. The preserved volcanic texture, relict aegirine and the bulk rock composition indicate that these rocks represent metamorphosed phonolites. The paragenesis in these rocks shows that jadeite-K-feldspar is a stable mineral pair in blueschist-facies P-T conditions.
This record provided courtesy of AGI/GeoRef.

gemfeller

  • Sr. Member
  • ****
  • Online Online
  • Posts: 489
    • Art Cut Gems
Re: Turkish purple jade
« Reply #14 on: August 01, 2017, 10:25:45 AM »

It's a rock composed mainly of quartz, jadeite in varying quantities, cinnabar and aegerine.  Here's a GIA analysis from Gems & Gemology that discusses it:

https://www.gia.edu/gems-gemology/FA13-LN-purple-jadeite
Logged
Pages: [1] 2  All   Go Up
 

Page created in 0.71 seconds with 55 queries.