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Post by broseph82 on Sept 28, 2014 20:57:25 GMT -5
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spiritstone
Cave Dweller 
Member since August 2014
Posts: 2,061 
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Post by spiritstone on Sept 28, 2014 21:17:56 GMT -5
Have you done any hardness checks to see if its a jasper. I still wonder if you have a mix of agate and common opal on a few of your finds. Keep us posted if you get the chance.  |
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Post by broseph82 on Sept 28, 2014 21:40:35 GMT -5
Have you done any hardness checks to see if its a jasper. I still wonder if you have a mix of agate and common opal on a few of your finds. Keep us posted if you if you get the chance. How would I go about that? |
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,723
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Post by Fossilman on Sept 28, 2014 22:14:46 GMT -5
That last photo looks like agate and common opal...
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spiritstone
Cave Dweller
Member since August 2014
Posts: 2,061
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Post by spiritstone on Sept 28, 2014 22:24:36 GMT -5
Have you done any hardness checks to see if its a jasper. I still wonder if you have a mix of agate and common opal on a few of your finds. Keep us posted if you if you get the chance. How would I go about that? Nov 22, 2013 at 2:39pm QuotePost Options Post by 1dave on Nov 22, 2013 at 2:39pm Hardness: A Simplified Hardness Scale: 1 and 2 may be scratched with your fingernail 3 may barely be scratched with a penny 4 is easily scratched with a knife 5 may barely be scratched with a knife. 6 will scratch a knife. 7 will scratch glass 8 will scratch quartz. In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (1773-1839), who selected these ten minerals because they were common or readily available. The scale is somewhat arbitrary. 01.Talc . . . . . . . . . 02. Gypsum 03. Calcite . . . . . . . 04. Fluorite 05. Apatite . . . . . . . 06. Feldspar 07. Quartz . . . . . . . 08. Topaz 09. Corundum . . . . . 10. Diamond But in "reality," Fluorite is more than ten times as hard as gypsum so more accuracy can be determined by measuring with a sclerometer, so "make it as hard as you want to." Sclerometer Here, The Mohs Scale is on the left. On the right is the Absolute Hardness where Diamond is 1600. 1 - TALC - . . . . . . 1 2 - GYPSUM - . . . . 2 3 - CALCITE - . . . . 9 4 - FLUORITE - . . . 21 5 - APATITE - . . . . 48 6 - FELDSPAR - . . . 72 7 - QUARTZ - . . . . 100 8 - TOPAZ - . . . . . 200 9 - CORUNDUM - . . 400 10 - DIAMOND - . . 1600 More minerals can be found at: www.classicgems.net/Hardness.htmI particularly like: www.jewelry-secrets.com/Other/Wh ... Scale.html |
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Post by roy on Sept 28, 2014 23:04:09 GMT -5
nice finds !!!!!
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transcendental
spending too much on rocks
Member since June 2014
Posts: 459 
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Post by transcendental on Sept 29, 2014 7:00:56 GMT -5
If your using a penny to check hardness, make sure its an old penny. I use the ones that have "one cent" written out on the back side. Pennies contain less and less copper the newer they are.  |
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Post by snowmom on Sept 29, 2014 14:13:07 GMT -5
good looking stuff! that first one fairly glows... such a deep red!
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Post by broseph82 on Sept 29, 2014 19:22:50 GMT -5
good looking stuff! that first one fairly glows... such a deep red! I Slabbed some of these today! Will post in a bit |
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,612
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Post by jamesp on Sept 30, 2014 5:12:38 GMT -5
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Post by broseph82 on Sept 30, 2014 15:28:44 GMT -5
Wow jamesp, those are nice. Here is the 3rd pic (with the red agate on the tip) slabbed  |
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Henry
spending too much on rocks
Member since January 2013
Posts: 452
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Post by Henry on Oct 2, 2014 12:06:02 GMT -5
Nice colors...especially the red one!
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