The SS Central America had lots of coins and lots of treasure to say the least. We has a presentation (with coins and gold nuggets) at a PCSC meeting in Downey, California last year. The author said this book was coming.
I don't see much of a preview online but it may be a reference book that will show up in your local library!
Pretty much done for this year. We've had snow twice already and it's hitting the teens at night. Last season I got 106 bits for just under an ounce and this year I only detected 40 bits for just over an ounce so an improvement over my 1st season! 18 bits from Montana and 22 bits from Idaho. FULL DISCLOSURE: 1 gram of the tiniest bits came from crack scratching/panning in the creek. I had fun and met some locals from Helena area (BIG help) and that helped me stumble onto the two bigger pieces (25g/4.5g) that saved my season. As long as I can improve weight at the end of season over the last I've reached the main goal.
good luck guys......
Miners have unearthed an ultra-rare diamond with a second diamond inside it.
The inner gem is loose inside the first diamond, moving around freely — and could be the first example of such a diamond ever found in the world.
This rare gem is believed to have formed around 800 million years ago.
It was dug up by Russian diamond miners Alrosa at the Nyurba mine in Siberia.
Scientists then used X-rays and other scanning techniques to confirm the presence of a second diamond inside the first. A diamond within a diamond has wowed the world.Source:Supplied
“Based on the results of the study, the scientists made a hypothesis about how the crystal was formed,” Alrosa said.
“According to them, there was an internal diamond at first, and the external one was formed during the subsequent stages of growth.”
The gem has been dubbed the Matryoshka diamond after the Russian nesting dolls of the same name.
The outer stone weighs 0.62 carats, while the inner gem weighs 0.02 carats.
“As far as we know, there has been no such diamond in the history of global diamond mining,” said Oleg Kovalchuk, of Alrosa.
“This is really a unique creation of nature, especially since nature abhors a vacuum.
An X-ray view of the diamond inside another diamond.Source:Supplied
“Usually, in a case like this, the minerals would be replaced by others without forming a cavity.”
He added: “The most interesting thing for us was to find out how the air space between the inner and outer diamonds was formed,” said Oleg Kovalchuk, of Alrosa.
The diamond will now be sent to the Gemological Institute of America for further analysis. Researchers haven’t estimated its worth yet — it will be difficult due to the gem’s rarity, they say.
However, they do have one theory as to how it formed.
“A layer of porous polycrystalline diamond substance was formed inside the diamond because of ultra-fast growth,” Alrosa scientists explain.
“And more aggressive mantle processes subsequently dissolved it.
“Due to the presence of the dissolved layer, one diamond began to move freely inside another — just like a Matryoshka nesting doll.”
Currently camped on the job in central Vic where comms are difficult, but here's a progress report.
Been at it for a couple of weeks (I think ) but there are some results to report. I've been working solo a lot of the time but also with Reg when he's not too busy.
We started off testing the new Detech 32" coplanar concentric which Stinky Pete kindly loaned us for a few days. What a coil!
Although we didn't manage to put it over any deep gold, it's easily the deepest seeking coil we have ever used, yet sensitive to small targets as well. I'm ordering an 18" to 20" model as soon as they become available. Howard is busy planning mods to the QED so it can run them as well.
I'm pretty excited about these coils. My friend Tony has been winding and using them for years with great prospecting success. Needless to say, he isn't interested in owning a "Z"
Hang onto your GPX's folks, they're about to penetrate previously unreached depths!
Some of the properties we've been prospecting are familiar and some are new. Always a buzz to finally get onto new ground after meeting with the "Cocky" and negotiating a deal. In some cases the ground has been detected before by others, but with careful gridding we always manage more. On one property we worked yesterday a previously detected patch yielded an additional ounce and a half in chunky colours (young blokes we were told) Perhaps they were ignoring screamers, but we're not complaining
First up, my solo tally so far. largest piece (front) over half an oz. All found with QED PL2:
- and our shared tally to be eventually split 50/50 . Again, largest piece (front) over half an oz detected by Reg:
All gold located in patches on eroded Tertiary leads. Some pieces still have traces of the cement matrix they eroded out from.
A general view of one of the Tertiary patches with Reg's young foxy "Boo" photobombing. Reg in the distance:
Posted elsewhere on this forum, my two largest pieces, found under 500kv powerlines:
A 400mm dig for a 5 grammer. I love that 18" Elite, it even centered shallow flyshite that doesn't register on my scales:
That's all for now. To be continued - - -