woody5
off to a rocking start
Member since December 2015
Posts: 1
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Post by woody5 on Dec 28, 2015 14:26:32 GMT -5
My first post ( hopefully this is the right area ) Can Aquamarine be tumbled? If so, any tips
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Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
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Post by Intheswamp on Dec 28, 2015 16:30:07 GMT -5
I have no idea. But I thought I'd give your post a friendly bump and say WELCOME TO RTH!!!!!!!!!!!!
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,563
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Post by jamesp on Dec 28, 2015 16:45:06 GMT -5
Yes. What size are they and do you have enough to fill your barrel ?
Silicon carbide is a lot harder the aquamarine.
pictures ? interesting tumble
Welcome to the forum
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,711
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Post by Fossilman on Dec 28, 2015 17:21:28 GMT -5
Welcome Woody..... As said post photos and this board will get you moving ahead...Thumbs up
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herchenx
Cave Dweller
Member since January 2012
Posts: 3,360
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Post by herchenx on Dec 28, 2015 17:26:10 GMT -5
I've bought tumbled Brazilian aquamarine and it is nice. The tumble grade stuff is a nice color, but cloudy (you wouldn't facet it)
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,563
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Post by jamesp on Dec 28, 2015 17:52:11 GMT -5
I've bought tumbled Brazilian aquamarine and it is nice. The tumble grade stuff is a nice color, but cloudy (you wouldn't facet it) If the Brazilians can tumble it, we can tumble it. An MMA challenge a different animal...
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,563
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Post by jamesp on Dec 28, 2015 18:09:02 GMT -5
Members tumble garnet with Knoop hardness of 1360. Aquamarine is beryl with Knoop hardness of 1250
Comparison of Hardness Values of Various Materials on Mohs and Knoop Scales Material Formula Mohs Value Knoop Value Talc 3MgO-4SiO2-H2O 1 ... Gypsum CaSO4-2H2O 2 32 Cadmium Cd ... 37 Silver Ag ... 60 Zinc Zn ... 119 Calcite CaCO3 3 135 Fluorite CaF2 4 163 Copper Cu ... 163 Magnesia MgO ... 370 Apatite CaF2-3Ca3(PO4)2 5 430 Nickel Ni ... 557 Glass (soda lime) ................................. ... 530 Feldspar (orthoclase) K2O-Al2O3-6SiO2 6 560 Quartz SiO2 7 820 Chromium Cr ... 935 Zirconia ZrO2 ... 1160 Beryllia BeO ... 1250 Topaz (AIF)2SiO4 8 1340 Garnet Al2O3-3FeO-3SiO2 ... 1360 Tungsten Carbide Alloy WC, Co ... 1400-1800 Zirconium Boride ZrB2 ... 1550 Titanium Nitride TiN 9 1800 Tungsten Carbide WC ... 1880 Tantalum Carbide TaC ... 2000 Zirconium Carbide ZrC ... 2100 Alumina Al2O3 ... 2100 Beryllium Carbide Be2C ... 2410 Titanium Carbide TiC ... 2470 Silicon Carbide SiC ... 2480 Aluminum Boride AlB ... 2500 Boron Carbide B4C ... 2750 Diamond C 10 7000
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