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Subject:Nephrite ? Dragon & Carp Carving
Posted By: Georgi Wed, Nov 11, 2015 IP: 68.231.244.8 Any opinions on the type of stone and age of the piece? |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Ernest Wilhelm Mon, Nov 16, 2015 A simple scratch test will tell you; take a strong needle, use enough pressure to make a 2-3 mm scratch on a sound area, tell us if this tiny scratch is black or white. |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Georgi Tue, Nov 17, 2015 Does the test has to be performed on the darker parts of the stone? |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Ernest Wilhelm Wed, Nov 18, 2015 JUST ANSWER MY QUESTION The scratch is to be done on a sound (hard)area, tell us the color of the scratch. |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Georgi Thu, Nov 19, 2015 The scratch is white. |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Ernest Wilhelm Thu, Nov 19, 2015 In this case, depending of how easy it was to make that scratch..if it felt soft, it is soapstone, ( the needle penetrates the stone with little rersistance) if there was a slight difficulty, it is Serpentine. I hope this will help. |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Georgi Sat, Nov 21, 2015 Thanks for your opinion. You need an effort to make the scratch so I guess it is harder than soapstone. |
Subject:Re: Nephrite ? Dragon & Carp Carving
Posted By: Ernest Wilhelm Sat, Nov 21, 2015 Some stones are harder than steel, and you see that the hard stone took a shaving of the steel. |
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