[Rockhounds] Winter Blah's Pop Quiz - What Was The Last Specimen Added To Your Collection?

[Jeffrey T. Cessna]

Dave,

I thought that was you. I talked to you last year 
about collecting in WV. Since then I found some 
trilobites back in Smoke Hole Canyon (Smoke Hole Rd, Pendelton Co., WV).

I was actually standing in front of your booth 
when I overheard someone wondering aloud if 
Potomac Marble would take a good polish. I was 
able to pull a cabochon out of my bag that I had 
just made that day between teaching kids. I 
hadn't heard about gold. Now I'll have to look 
over my samples again, including the ones in my yard.

I'll be sure to stop by again this year. The 
Montgomery Co (MD) club is my local club. I 
bought fluorescents from you last year. For 
anyone who is wondering, the club link is 
http://www.glmsmc.com/ and the show is 21-22 March.

Both the trilobites and the Potomac Marble will 
be in our "Rocks Anyone Can Collect" display.

In another coincidence the presentation at the 
club meeting on Monday will be on Fluorescents.

Jeff


At 11:34 AM 2/6/2009, you wrote:
>Don't forget to look for flects of gold in the Potomic marble.
>If you come to the Gaithersburg show next month, I have
>lots of fluorescent specimens,
>dave
>
>
>-----Original Message-----
>From: Jeffrey T. Cessna <jcessna at nist.gov>
>To: Rockhounds at drizzle.com: A mailing list for 
>rock and gem collectors <rockhounds at lists.drizzle.com>
>Sent: Fri, 6 Feb 2009 11:01 am
>Subject: Re: [Rockhounds] Winter Blah's Pop Quiz 
>- What Was The Last Specimen Added To Your Collection?
>
>
>At 10:29 PM 2/5/2009, you wrote:Â
>Â
>>What Was The Last Specimen Added To Your Collection?Â
>Â
>Purchased:Â
>Â
>Willemite Zn2(SiO4) fl green SW/LWÂ
>Sphalerite (Zn,Fe)S fl,ph yellow ?WÂ
>Calcite-(Mn) CaCO3 fl red SWÂ
>Hasselhojden, Grythyttan, SwedenÂ
>Size: 6.5x4x4 cm (144g)Â
>Â
>It is still in the mail, from sweden, but I have 
>really enjoyed the other fluorescents I have 
>purchased from Kjell Gatedal (unsolicited endorsement) on eBay.Â
>Â
>Collected (31 jan 09):Â
>Â
>Potomac Marble (limestone conglomerate)Â
>Leesburg Member, Balls Bluff SiltstoneÂ
>Rt 15 N of Leesburg, Loudoun Co., VirginiaÂ
>Â
>I collected several pieces, chosen for either 
>interesting constituents or interesting 
>patterns. I put down the piece with the intact 6 
>cm feldspar crystal and couldn't find it again. 
>Often the stones making up the conglomerate are 
>themselves pieces of weathered conglomerate. I 
>found a 30 x 10 x 2.5 cm piece20with half of one 
>face covered with small milky quartz crystals 
>from a later vein filling. If you can bring 
>yourself to cut it, it will take a very nice 
>polish. I have included a few links with more information.Â
>Â
>http://www.mcmullans.org/geoweb/BasicPageListing/leesburg_member.htmÂ
>Â
>http://pubs.usgs.gov/gip/stones/stones3.htmlÂ
>Â
>pictures 
>http://www.nvcc.edu/home/cbentley/geoblog/2008/05/western-conglomerates-culpeper-basin.html 
>
>Â
>Cheers,Â
>JeffÂ
>Â
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