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Post by sandsman1 on Mar 10, 2005 17:41:54 GMT -5
i found this rock on ebay and i fig let me take a chance and i got a nice size chunk of it well i slabed alittle and then rough shaped a piece and its nicew and hard shapes nice no melting and it looks like it will take a high gloss shine too i realy like that it has no flaws its pitch black and very cool looking like a jade kind of rock if you check it out it will tell you why it dont have a name right now ---but it looks like a black jade  heres the site i got it from,, very nice to deal with too search.ebay.com/_W0QQsassZgreenrockhound |
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Post by docone31 on Mar 10, 2005 18:02:09 GMT -5
I went to the site. It is obsidian. I have a lot of it in my shop. Some is transparent, some very dark. It polishes real well with Aluminum Oxide.
I think the miner who sold it to the auctioneer fibbed a little.
Never mind the technicalities, it makes a great polished stone, cab, and sets real well in silver.
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Post by sandsman1 on Mar 10, 2005 18:32:17 GMT -5
it does look like obsidian in the pic doc but i have a bunch of obsidian here and it dont look nuttin like it it dont feel like it eather when you cut or grind it it dont act like obsidian and chip and break in slivers ---are there dif makups of obsidian ? i allways thought it was a glass like material --- in person this stuff dont look like obsid even feeling it it feels dif---i dont know that much about rock yet so i could be wrong if theres obsidian thats not a glass ---i just sent some to banjo to check out he said the same thing when he seen the pic obsidian ---hahaha hey what do i know i just know it looks cool hahaha
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Post by docone31 on Mar 10, 2005 19:28:32 GMT -5
Yeah sands, it looks cool, in natural form, polished, shaped. Obsidian comes in a variety of types, from full laced with colours, to snowflake, to almost basalt.
A charastic of obsidian is the way it chips. Even with grey snowflace, or blue, it chips kinda like glass.
It sorta looks like plastic, when it is not clear. I had some that formed around a stone. That was neat. When I cut it, it looked like an avocado. When it was cut, the center fell out.
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Post by americanbulldogsnj on Mar 10, 2005 19:55:52 GMT -5
very cool find! It's so dark and mysterious I like it!
Marian
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Post by krazydiamond on Mar 10, 2005 20:16:13 GMT -5
can't help but notice the paper plate measurement scale there, Sands, HA! maybe some where down the line it will become as famous as the MOH.
KD
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Post by BearCreekLapidary on Mar 10, 2005 22:37:07 GMT -5
Hey Sands,
I always check Obsidian by the conchoidal fracture (shell like surface). It looks like Obsidian to me as well.
Hey ... you never know ... you might have a seller that is selling the black Nevada Opal as a "No Name or Mystery" rock?
Good Luck ... If you find any color play ... definitely keep me posted ;D
John
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Post by creativeminded on Mar 10, 2005 22:55:18 GMT -5
Looks like it might be a piece of Jet. Nice find.
Tami
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Post by hermatite on Mar 12, 2005 9:40:17 GMT -5
so we can rule out fossilized ebony?
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