|
Post by rockjunquie on Jun 3, 2018 6:48:37 GMT -5
Well, folks- I did as well as I could for a specific gravity test and it came up a little short for nephrite. But, I don't know how good the testing was. I am cabbing a piece today and will let you know how it goes.
|
|
|
Post by fernwood on Jun 3, 2018 6:57:55 GMT -5
....would like to convey to her the appropriate appreciation aside from it being very thoughtful - as she knows I am a lapidary. rockjunquie How about some items made from the material? I am guessing she wears jewelry. To me, showing appreciation for a gift such as this would include a sample of how it was used. A lot would depend on her personal beliefs about accepting gifts from others.
|
|
|
Post by rockjunquie on Jun 3, 2018 7:00:22 GMT -5
....would like to convey to her the appropriate appreciation aside from it being very thoughtful - as she knows I am a lapidary. rockjunquie How about some items made from the material? I am guessing she wears jewelry. To me, showing appreciation for a gift such as this would include a sample of how it was used. A lot would depend on her personal beliefs about accepting gifts from others. I was thinking of making her a piece from the stone. Probably with the one I cab today.
|
|
|
Post by rockjunquie on Jun 3, 2018 13:31:38 GMT -5
OK, I have my answer, sorta. IT IS NOT JADE. As soon as I started cabbing it, I knew for sure. It is too soft and easily takes a shine. If my density test was right, it is closer to 2.7 than 3.20-3.33 g/cc of Jadeite and 2.98 - 3.33 g/cc of nephrite. I would say it had a harness of about 4. It was a little harder than rhodochrosite.
Bummer. I wonder what it is? Of the fake jades, it looks more like prehnite than anything, but can't be. Too hard to be alabaster, though it was meant to be carved. Jury is still out.
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Jun 3, 2018 14:09:56 GMT -5
If my density test was right, it is closer to 2.7 than 3.20-3.33 g/cc of Jadeite and 2.98 - 3.33 g/cc of nephrite. I would say it had a harness of about 4. Sounds more like white serpentine, which is sometimes used as a jade substitute (green, white and other colors).
|
|
|
Post by rockjunquie on Jun 3, 2018 15:10:21 GMT -5
If my density test was right, it is closer to 2.7 than 3.20-3.33 g/cc of Jadeite and 2.98 - 3.33 g/cc of nephrite. I would say it had a harness of about 4. Sounds more like white serpentine, which is sometimes used as a jade substitute (green, white and other colors). That totally slipped my mind. Could be, though there are no specks in it, which I tend to associate with serpentine.
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Jun 3, 2018 15:37:55 GMT -5
Could be, though there are no specks in it, which I tend to associate with serpentine. Spotting is absent or minimal in the serpentine that gets marketed under names such as "New White Jade," "Fire Jade," "White Serpentine Jade," etc. It crops up in lots of "jade" carvings and beads, as well as in some older pieces - the white serpentine began being imported into China from Burma in the early 19th century along with jadeite (which was practically unknown prior to that time) both of which were "substitutes" for the traditional green and white nephrite jade. Since then, there are other sources.
|
|
|
Post by rockjunquie on Jun 3, 2018 15:40:57 GMT -5
Could be, though there are no specks in it, which I tend to associate with serpentine. Spotting is absent or minimal in the serpentine that gets marketed under names such as "New White Jade," "Fire Jade," "White Serpentine Jade," etc. It crops up in lots of "jade" carvings and beads, as well as in some older pieces - the white serpentine began being imported into China from Burma in the early 19th century along with jadeite (which was practically unknown prior to that time) both of which were "substitutes" for the traditional green and white nephrite jade. Since then, there are other sources. Yeah, I'm heavily leaning on serpentine now.
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Jun 3, 2018 17:09:04 GMT -5
It is still an attractive white stone. Please post a pic when you are finished with the cab. So many things that can look like, and are marketed as, jade. As you definitely know (but some folks who read here may not), the word "jade" may legitimately be used (and legally when selling) only to refer to jadeite and nephrite. My partial, and ever-growing, list of misleading jade names would include... - Afghan Jade (serpentine)
- African/South African Jade (massive grossular garnet)
- Agate Jade (green agate)
- Alaska Jade (green pectolite)
- Albite Jade (actinolite in white albite)
- Amazon Jade (green feldspar)
- American Jade (vesuvianite)
- Andesine Jade (amazonite feldspar)
- Australian Jade (chrysophase)
- Beijing Jade (glass)
- Colorado Jade (amazonite feldspar)
- Dushan Jade (saussurite)
- Feather River Jade (vesuvianite)
- Fire Jade (serpentine or opalite)
- Fukien Jade (soapstone)
- Garnet Jade (massive garnet)
- Ghost Jade (coarsely grained amphibole)
- Happy Camp Jade (vesuvianite)
- Honan Jade (soapstone)
- Jadeolite (syenite)
- Jadine (chrysoprase)
- Indian Jade (aventurine quartz)
- Jasper Jade (jasper, serpentine & )
- Japanese Jade (white and/or green agate)
- Jiuquan Jade (serpentine)
- Korean Jade (serpentine, steatite, glass & )
- Lantian Jade (tremolite)
- Lemon Jade (serpentine)
- Longxi Jade (tremolite)
- Malaysian Jade (quartzite or soapstone)
- Marble Jade (dyed marble, glass & plastic)
- Meta-Jade (glass)
- Mexican/Imperial Mexican Jade (calcite, serpentine & )
- Mountain Jade (dolomite)
- Nanyang Jade (sausserite or feldspar)
- New Jade (serpentine)
- Oregon Jade (green jasper or garnet)
- Pectolite Jade (pectolite)
- Peking Jade (serpentine, glass or )
- Pulga Jade (vesuvianite)
- Regal Jade (quartzite or aventurine)
- Rhode Island Jade (bowenite)
- Rhodesian Jade (verdite)
- Russian/Siberian Jade (serpentine)
- Serpentine Jade (serpentine)
- Shanghai Jade (soapstone)
- Shoushan Jade (volcanic rock)
- Soochow Jade (green bowenite, serpentine & soapstone)
- Silver Peak Jade (malachite)
- Styrian Jade (serpentine with mica inclusions)
- Swiss Jade (green jasper or sausserite)
- Tenace Jade (sausserite)
- Transvaal Jade (hydrogrossular garnet)
- Turkish Jadeite (rock with jadeite content too low to be classed as jade)
- Vesuvianite Jade (vesuvianite)
- Virginia Jade (amazonite feldspar)
- Xiuyan Jade (serpentine)
There can be real jadeite or nephrite jade from some of the locations above, but that is not what is usually seen when these terms are encountered in the marketplace.
|
|
|
Post by rockjunquie on Jun 3, 2018 17:37:13 GMT -5
That's a great list! I think I've sen them all, too.
I took the cab to 100k and it cracked due to heat.
|
|
|
Post by fernwood on Jun 3, 2018 17:42:41 GMT -5
What a list. Thanks for sharing your knowledge.
|
|
|
Post by fernwood on Jun 3, 2018 17:43:02 GMT -5
Oh no on the crack. So, now what?
|
|
|
Post by rockjunquie on Jun 3, 2018 17:46:49 GMT -5
Oh no on the crack. So, now what? I don't mind that it cracked. It was a learning experience. I didn't really expect it to and was surprised. I'll cut a few more later, but I'm not in a huge hurry. I'd be in a bigger hurry if it was jade. LOL!
|
|
|
Post by toiv0 on Jun 3, 2018 17:52:21 GMT -5
So are you going to tell the lady it isn't Jade? Probably cause a family crisis
|
|
|
Post by rockjunquie on Jun 3, 2018 19:21:03 GMT -5
So are you going to tell the lady it isn't Jade? Probably cause a family crisis She didn't personally present it to me as jade. Her daughter gave it to me. I said, "Is that jade?" She said yes. But I don't think she knew any better. I will ask mom what it is and let her tell me it is such and such jade - mountain jade or whatever. I sincerely doubt that she wanted to present me with fake jade and then say it is jade knowing that it isn't. Odds are, she doesn't actually know. But, yeah, kind of a sticky situation.
|
|
|
Post by toiv0 on Jun 3, 2018 19:31:43 GMT -5
I would say a white lie is in order...or if its suppose to be white jade maybe a mutton fat jade lie is in order. We kind of like you here, don't want you to start an international panic.
|
|
|
Post by Pat on Jun 3, 2018 19:53:30 GMT -5
Can you show your cab to a jeweler, or take to a local rock shop for I’d confirmation?
|
|
|
Post by kk on Jun 3, 2018 19:53:59 GMT -5
Shoushan Jade: Interesting that that is even here on the list as no-one over here would ever regard it as jade. But, it is a very interesting stone, that is used by any master-carver to prove their worth. Utilizing as many colours as possible is considered a feat only masters could achieve. Highly prized (higher than most jades), and very hard to obtain in the rough. I have been looking unsuccessfully for it in Guangzhou Jade market for five years now. Last year someone tried to pass mookite as Shoushan.
|
|
|
Post by rockjunquie on Jun 4, 2018 7:20:21 GMT -5
Can you show your cab to a jeweler, or take to a local rock shop for I’d confirmation? I'm pretty sure it isn't jade, but if a situation presents itself, I will find out more.
|
|
spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
|
Post by spiritstone on Jun 4, 2018 14:47:59 GMT -5
This is supposed to be Mutton fat? from the Fraser river in BC. I cant confirm it because I haven't done a specific gravity test.
|
|