RocknCritter
spending too much on rocks
Member since November 2008
Posts: 489
|
Post by RocknCritter on Sept 19, 2014 22:04:25 GMT -5
|
|
|
Post by jakesrocks on Sept 19, 2014 22:16:52 GMT -5
Super cool. Do they sell specimens that haven't been ground and polished ? I'd like a raw piece in my fossil collection.
|
|
|
Post by captbob on Sept 20, 2014 0:23:35 GMT -5
Cool stuff! The second group kinda has a septarian look to it. The "agate" looks more like calcite.
|
|
panamark
fully equipped rock polisher
Member since September 2012
Posts: 1,343
|
Post by panamark on Sept 20, 2014 4:48:30 GMT -5
Yeah, calcite or quartz crystals. Those ammonites went on quite a ride. Wild stuff.
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Sept 20, 2014 6:37:33 GMT -5
Awesome mother does it again. WOW Jim
|
|
|
Post by fantastic5 on Sept 20, 2014 7:28:01 GMT -5
Amazing! After a few years on this site I would have thought that I would stop having 'jaw dropping' experiences when opening poss.
|
|
RocknCritter
spending too much on rocks
Member since November 2008
Posts: 489
|
Post by RocknCritter on Sept 20, 2014 8:31:15 GMT -5
Super cool. Do they sell specimens that haven't been ground and polished ? I'd like a raw piece in my fossil collection. For better or worse, the Russians only sell the finished pieces. The mine doesn't produce much and I think they realize there is value in doing the lapidary work themsleves. If they ever did decide to sell the rough and they attended a major show like Tucson or Munich, they would probably sell out within minutes.
|
|
RocknCritter
spending too much on rocks
Member since November 2008
Posts: 489
|
Post by RocknCritter on Sept 20, 2014 8:47:52 GMT -5
Cool stuff! The second group kinda has a septarian look to it. The "agate" looks more like calcite. With a Mohs hardness of 7, it's the world's hardest calcite. It's actually agatized calcite with marl and chabazite. Over the years, three commiments have been made about the Simbercite. #1 Despite being used in all types of jewelry - rings, bracelets, pendats, earrings, etc. - without scratching, chipping or otherwise being damaged, it's just calcite. Yet, almost every geologist, gemologist and jeweler who has actually seen and handled the material has not disputed the fact that it is an agate. I have recut a few pieces for jewelers that need a specific shape (and one piece that I dropped on the concrete floor at the Creede show) and it was definitely not calcite. There is one well known gemologist (with a PhD) that was selling it a few years ago as calcite. She also believes that the opalized fluorite we know as Tiffany stone is named Picasso marble........................ #2 The yellow-gold portions of Simbercite is amber that is surrounded by pyrite. Nevermind that amber and pyrite don't form in the same geological environment and that amber is a mineraloid. #3 It's man-made Coincidentally, I don't sell many at the gem shows in Utah. Most of the locals think it's just some kind of fancy septarian nodule. Thanks for looking.
|
|
Fossilman
Cave Dweller
Member since January 2009
Posts: 20,680
|
Post by Fossilman on Sept 20, 2014 8:50:40 GMT -5
I have some old stock Russian Ammonites in my collection...One has the pyrite(been halved) and the other two are as a whole,about like the Placenticeras meeki Boehm,"Ammonites" we find in Montana and South Dakota..Thumbs up
Nice collection of cabs you have there-thumbs up,liking the pyrite..
|
|
|
Post by gingerkid on Sept 22, 2014 19:36:15 GMT -5
Outstanding cabs, RocknCritter!! This one made me think of the Mothman.
|
|
Fossilman
Cave Dweller
Member since January 2009
Posts: 20,680
|
Post by Fossilman on Sept 22, 2014 21:19:55 GMT -5
Thumbs up...
|
|
Deleted
Deleted Member
Member since January 1970
Posts: 0
|
Post by Deleted on Sept 22, 2014 23:30:54 GMT -5
[Speechless]
|
|