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Chinese Writing Stone

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minkos61
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« on: November 09, 2014, 08:25:45 pm »

Chinese writing stone end cut from todays cutting




Thanks for looking

Ernie
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Ernie

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Allen
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« Reply #1 on: November 10, 2014, 01:49:31 am »

lots of possibilities with that stone.
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itsandbits1
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« Reply #2 on: November 10, 2014, 09:19:41 am »

Is that a local stone Ernie? I call the stuff with the random patterns like this "rice grain basalt" I can get a semi shine on it but haven't tried to use zam or one of the metal polishes.
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The wheels of life go round and round, round and round, round and round, and then they hit a rock

minkos61
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« Reply #3 on: November 10, 2014, 10:13:03 am »

I Googled it Lloyd and it seems to be  from many areas , it also is called Porphyry.
I have different samples of it in the rough and the Feldspar Crystals vary in size and shape dramatically.
I have not polished any up yet as I still have to finish the grinder (next on the list to do) yet , so for now I'll cut up some slabs and have them ready to go .

Ernie 
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Ernie
minkos61
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« Reply #4 on: November 10, 2014, 10:14:42 am »

lots of possibilities with that stone.

Thank you Allen I hope so.
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Ernie
lithicbeads
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« Reply #5 on: November 10, 2014, 05:33:06 pm »

This rough can be a bit tricky. The base rock can often be a bit soft and both the base rock and the feldspar crystals can be metamorphosed to a degree making both act up potentially when cutting. This piece looks a bit metamorphosed because it looks like some of the feldspar has a green cast. If you find the flower rough  that has very good contrast it can be valuable. This type pictured is under appreciated by the market but can make wonderful stones if you work hard at the lay out of the stone relative to the pattern.Not a very common rock in any case.
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minkos61
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« Reply #6 on: November 10, 2014, 07:50:13 pm »

You're right about the green cast in the feldspar Frank I noticed it in the cut slabs .
I have seen this rough listed on some sites a $6 a lb. I just shake my head and go really !! LOL.
Thanks for your info again Frank always so helpful .

Ernie
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Ernie
minkos61
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« Reply #7 on: November 10, 2014, 07:58:36 pm »

Couple slabs off the saw today




Thanks for looking
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Ernie
itsandbits1
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« Reply #8 on: November 11, 2014, 08:38:02 am »

I think I'm going to have to go back to the site I found mine at considering the prices I see on ebay for it  LOL. Some are asking more than an equal weight of what good nephrite can be bought for here.
Frank, what makes the material more desirable? spacing of the feldspar? colour of the grains or stone? of course the less porous the basalt is the better I'm sure.
Lloyd
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lithicbeads
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« Reply #9 on: November 11, 2014, 09:34:15 am »

Flower shapes and size and contrast are the keys. Dark background with clean white feldspar with good flower shapes.
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minkos61
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« Reply #10 on: November 11, 2014, 10:41:42 am »

You saw those prices to hey Lloyd lol got me thinking to .

Ernie
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Ernie
itsandbits1
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« Reply #11 on: November 11, 2014, 07:02:15 pm »

Here's a stone from the rock garden I cut flats on a couple of years ago when I found this source just to see what it looked like. I've got one around from a different local source but can't find it right now. This one should polish really black though and give a nice contrast to the white feldspar. This is taken dry and it's been sitting in the yard weathering for two years.
 
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minkos61
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« Reply #12 on: November 11, 2014, 07:12:18 pm »

Very nice Lloyd! Lots of smaller crystals to hey!
You going to take a slab and cab it ?

Ernie
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Ernie
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« Reply #13 on: November 11, 2014, 09:34:36 pm »

I love looking at this rough, thanks.
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itsandbits1
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« Reply #14 on: November 11, 2014, 09:52:50 pm »

I'll have to take a slab off the place where I made the small window and cab it up now Ernie; once I get the heat up in the saw shop :(
You're welcome Frank
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