[Rockhounds] Florida silicified shell fossils

[Axel Emmermann]

Some decades ago, on a Friday in 1985, I thought it was strictly amateur too... Oh boy, that's how it starts 😉

Axel

-----Oorspronkelijk bericht-----
Van: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] Namens Stephen Shimatzki
Verzonden: donderdag 30 november 2017 18:37
Aan: Rockhounds at drizzle.com: A mailing list for rock and gem collectors <rockhounds at rockhounds.drizzle.com>
Onderwerp: Re: [Rockhounds] Florida silicified shell fossils

Thanks Axel, It's my UV Jedi sword... ;)  though I must admit It's strictly amateur but fun!


On Nov 30, 2017 12:26 PM, "Axel Emmermann" <axel.emmermann at telenet.be>
wrote:

Finally, someone who wields the UV lamp!
Congrats, Steven!

Axel

-----Oorspronkelijk bericht-----
Van: Rockhounds [mailto:rockhounds-bounces at rockhounds.drizzle.com] Namens Stephen Shimatzki
Verzonden: donderdag 30 november 2017 6:28
Aan: ajs at frii.com; Rockhounds at drizzle.com: A mailing list for rock and gem collectors <rockhounds at rockhounds.drizzle.com>
Onderwerp: Re: [Rockhounds] Florida silicified shell fossils

Those look similar to the ones from the tourist spot over in Fort Drum.  My
father-in-law collected some while traveling there.   I havent been lucky
enough myself to be down in FL in some 30 years when i was a teenager.

Anyways, the calcite glow nice on mine (ex pap's) under UV!

-Steve

On Nov 29, 2017 11:47 PM, "Alan Silverstein" <ajs at frii.com> wrote:

Howdy folks.  A year or two ago, there was some chat here about silicified Florida (USA) shell fossils -- not to be confused with well-known Tampa Bay area agatized coral.  I mentioned that I'd collected a handful in North Miami Beach back in the 1970s.  Here's a recent photo of them:

  http://silgro.com/pics/171103_NorthMiamiBeachRocks.jpg

Also I talked with someone off-list about these rocks, but then I couldn't find the originals in my growing collection!  Well recently while doing sorting and high-grading, I found the flat, and this is what they look like (photo URL above), with a penny for scale.  Note that some broken pieces show yellowish quartz crystals inside.

The two-sided bivalve cast on the right end of the third row is the coolest...  It's translucent when you hold it up to the sun.

I wish I'd spent more time back then collecting on this scraped-off open field before they built a suburb on top of it!  Just from memory, I think the location was around 25.95397 -80.16272; paste into Google Maps to see where.  While I know it was west of some like in the area, not sure I have the right one!

Cheers,
Alan Silverstein

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