This has been called for a few times in recent threads so might as well get the ball rolling. I would like to adopt Gail's one post/picture per day rule for this thread, but more than one view of a specimen should be OK. I'll start out with a 1.5 x 4 cm. amethyst scepter collected in 2004 from Crystal Park, Montana, USA since it's one of the few specimens I've taken a somewhat acceptable picture of. [pic id=16920 width=600 float=left][/pic] http://www.mindat.org/forum.php?read,17,240944,240944#msg-240944 Mon, 20 May 2013 04:08:17 +0000 Phorum 5.2.15a http://www.mindat.org/forum.php?read,17,240944,266205#msg-266205 http://www.mindat.org/forum.php?read,17,240944,266205#msg-266205
Dark green tourmaline 9 cm tall, nested in albite in quartz.
And other is an interesting muscovite crystal with leaf like pattern and lepidolite capping, 11 cm tall.

Excavator has been used to turn the dump this year and now it is easier again to find minerals. These were collected from the surface.]]> Jyrki Autio Scrapbook Wed, 18 Jul 2012 10:04:43 +0000 http://www.mindat.org/forum.php?read,17,240944,261793#msg-261793 http://www.mindat.org/forum.php?read,17,240944,261793#msg-261793 The 7cm x 5cm x 3cm crystal shown was almost completely hidden. When I made the initial cleave, this popped into view, perched on the matix. The same chunk of calcite yielded another interesting slab of calcite peppered with smaller fluorapatite crystals, many doubly terminated ( see [www.mindat.org] )
CLICK ON PIC TO SEE FULL VIEW

© JR Montgomery

]]> John Montgomery Scrapbook Sat, 26 May 2012 12:13:15 +0000 http://www.mindat.org/forum.php?read,17,240944,261767#msg-261767 http://www.mindat.org/forum.php?read,17,240944,261767#msg-261767 Bob Jackson Scrapbook Fri, 25 May 2012 23:45:53 +0000 http://www.mindat.org/forum.php?read,17,240944,261690#msg-261690 http://www.mindat.org/forum.php?read,17,240944,261690#msg-261690 It was found as a floater. It has fairly sharp lines and good lustre.

10cm x 6cm x 4.5cm

© JR Montgomery

© JR Montgomery

©

© jR Montgomery

© JR Montgomery

]]> John Montgomery Scrapbook Fri, 25 May 2012 01:43:05 +0000 http://www.mindat.org/forum.php?read,17,240944,259919#msg-259919 http://www.mindat.org/forum.php?read,17,240944,259919#msg-259919 A pyritised fossil I found as a 13 year old boy. From the tailings of a coal mine in Ibbenbüren, Germany.]]> Mario Hendriks (2) Scrapbook Sat, 05 May 2012 17:11:29 +0000 http://www.mindat.org/forum.php?read,17,240944,259809#msg-259809 http://www.mindat.org/forum.php?read,17,240944,259809#msg-259809 covellite]]> Ron Layton Scrapbook Fri, 04 May 2012 15:52:06 +0000 http://www.mindat.org/forum.php?read,17,240944,259683#msg-259683 http://www.mindat.org/forum.php?read,17,240944,259683#msg-259683 It measures 10cm by 5cm...clear to smokey.]]> Samuel Knipmeyer Scrapbook Wed, 02 May 2012 18:57:14 +0000 http://www.mindat.org/forum.php?read,17,240944,259515#msg-259515 http://www.mindat.org/forum.php?read,17,240944,259515#msg-259515 Nice calcite!!]]> Samuel Knipmeyer Scrapbook Mon, 30 Apr 2012 07:36:22 +0000 http://www.mindat.org/forum.php?read,17,240944,259466#msg-259466 http://www.mindat.org/forum.php?read,17,240944,259466#msg-259466
Nevada is a great place to collect! Lots of wide open spaces and mines, mountains and geologic diversity and a general lack of those pesky tumbling streams, rain forests and withdrawn areas.

Cheers!

Steve]]> Stephen Rose Scrapbook Sun, 29 Apr 2012 16:45:04 +0000 http://www.mindat.org/forum.php?read,17,240944,259410#msg-259410 http://www.mindat.org/forum.php?read,17,240944,259410#msg-259410
Bob]]> Bob Jackson Scrapbook Sun, 29 Apr 2012 03:07:30 +0000 http://www.mindat.org/forum.php?read,17,240944,259399#msg-259399 http://www.mindat.org/forum.php?read,17,240944,259399#msg-259399
[attachment 38083 NVHumboldtCalciteTwinxxx.jpg]

Calcite, butterfly twin, Devil's Corral, Hycroft mine complex, Sulfur District, Humboldt County, Nevada. Overall size: 7x6x3.5 cm.

Cheers!

Steve]]> Stephen Rose Scrapbook Sat, 28 Apr 2012 22:18:11 +0000 http://www.mindat.org/forum.php?read,17,240944,259347#msg-259347 http://www.mindat.org/forum.php?read,17,240944,259347#msg-259347
Bald Hornets are I believe, a subset of whiteface hornets. The white starts about eye level and continues over the head. Perhaps someone with greater entomological knowledge than I (that is almost everyone!) can comment on this. The white head makes them easy to spot and avoid ... nasty sting.

Another twin group form BH, dirty. Cleaned, is now in Houston. Same 1988 pocket.

Bob

[attachment 38064 BHTwinsHandSm.jpg]]]> Bob Jackson Scrapbook Sat, 28 Apr 2012 00:50:33 +0000 http://www.mindat.org/forum.php?read,17,240944,259339#msg-259339 http://www.mindat.org/forum.php?read,17,240944,259339#msg-259339
Great twin! I've never had the pleasure of collecting a Japan law twin, or lunaite for that matter, but here is a fine little tabby from Nevada.

[attachment 38062 NVPershingQtzCKtabby2.jpg]

[attachment 38063 NVPershingQtzCKtabby.jpg]

Quartz, tabular crystal from the CK claim, Bottomly Prospect area, North Trinity Range, Pershing County, Nevada. 3.5 x 3.5 x 0.5 cm

By the way, what is the origin of the name of the "Bald Hornet"? I am familiar with white face hornets, and a variety of others, but never ran into a bald one. ;-)

Cheers!

Steve]]> Stephen Rose Scrapbook Fri, 27 Apr 2012 23:48:48 +0000 http://www.mindat.org/forum.php?read,17,240944,259271#msg-259271 http://www.mindat.org/forum.php?read,17,240944,259271#msg-259271 Here's a quartz Japan law with lunaite ball from Bald Hornet property, King Co, WA, collected 1988. One of 16 twins from this pocket. Left twin ear is 3 inches long. Right twin ear is perfect, just hidden. Wish we'd taken a photo of the back side! Rick Dillhoff photo.

Bob

[attachment 38052 BHTwinLunaiteSm.jpg]]]> Bob Jackson Scrapbook Fri, 27 Apr 2012 02:53:59 +0000 http://www.mindat.org/forum.php?read,17,240944,259016#msg-259016 http://www.mindat.org/forum.php?read,17,240944,259016#msg-259016
[attachment 38019 NVLyonCoFluorite:BaryteA.jpg]

Boulder Hill mine, Wellington, Lyon Co., Nevada

Cheers!

Steve]]> Stephen Rose Scrapbook Wed, 25 Apr 2012 03:26:48 +0000 http://www.mindat.org/forum.php?read,17,240944,258133#msg-258133 http://www.mindat.org/forum.php?read,17,240944,258133#msg-258133
This one has been posted to the New Photos Today files but hasn't shown up yet. One of my favorite locations, unfortunately no longer accessible.

[attachment 37866 NVCalciteTwin2.jpg]

Calcite, fishtail twin, Devil's Corral, Hycroft mine complex, Sulphur mining district, Humboldt Co., Nevada. Circa (about) 2000. 7.5x6.5x5 cm.

Cheers!

Steve]]> Stephen Rose Scrapbook Sun, 15 Apr 2012 15:36:05 +0000 http://www.mindat.org/forum.php?read,17,240944,258124#msg-258124 http://www.mindat.org/forum.php?read,17,240944,258124#msg-258124
I thought I would join this thread and answer your plea for someone else to add something. I have been up to Arkaroola in the Northern Flinders Ranges, eight times in the last twenty years and these are some of the samples I have collected in the field while there. I know that these are already listed on the "best down under" thread, but they also qualify for this one...

[attachment 37863 DSCF7772.JPG]

Malachite pseudomorphs after Azurite - from the Sir Dominick Mine - sample is 6cm across

[attachment 37864 DSCF7776.JPG]

A large Orthoclase feldspar crystal 10cm on edge with quartz - from Mawson Valley

[attachment 37865 DSCF7786.JPG]

Magnetite crystals in talc - from the Lady Buxton Mine - sample is 5cm across]]> Trevor Dart Scrapbook Sun, 15 Apr 2012 11:18:11 +0000 http://www.mindat.org/forum.php?read,17,240944,258093#msg-258093 http://www.mindat.org/forum.php?read,17,240944,258093#msg-258093
I collected these in 1965 from rocks near a small intrusive in the Dougherty Mountain complex on the east side of the North Boulder River valley, Jefferson County, Montana. I have always wanted to go back and spend some time there as these were abundant and there must be some good specimens to be found, but it looks as if that won't happen. If anyone is interested in additional information about the locality let me know and I'll give you what I know.

[attachment 37855 MTJeffersonVesuvianite2.jpg]
Vesuvianite, Jefferson Co., Montana 2.5x2.5x2 cm. 1965

[attachment 37856 MTJeffersonVesuvianite1.jpg]
Vesuvianite, Jefferson Co., Montana. Crystal is 0.5x0.5 cm. 1965.

Cheers!

Steve]]> Stephen Rose Scrapbook Sat, 14 Apr 2012 22:29:18 +0000 http://www.mindat.org/forum.php?read,17,240944,256514#msg-256514 http://www.mindat.org/forum.php?read,17,240944,256514#msg-256514
[attachment 37595 NVEsmeraldaCaF21.jpg]

Fluorite, Esmeralda County, Nevada. 4x5x4 cm.

[attachment 37596 NVEsmeraldaCaF22.jpg]

Another view

Cheers!

Steve]]> Stephen Rose Scrapbook Tue, 27 Mar 2012 22:12:13 +0000 http://www.mindat.org/forum.php?read,17,240944,255964#msg-255964 http://www.mindat.org/forum.php?read,17,240944,255964#msg-255964
[attachment 37487 COTuckervilleBreccia1.jpg]

In this first specimen the host rock is a dolomite (buff to tan) with rich copper secondary minerals that are mostly green. Copper mineralization has replaced some of the breccia fragments. Primary sulfides are seen in the upper right of the laquered face. Manganese oxides are seen in the buff dolomite and are mixed with other minerals in the copper rich part of the specimen as black stringers. Small cracks and inter-breccia openings in rocks like this were the source for many interesting minerals, including the new species, theisite. Specimen face shown approximately 18x25 cm. Collected in 1975.
Photo courtesy of R. Foley.

[attachment 37488 COTuckervilleBreccia2.jpg]

The second specimen shows intensely brecciated dolomite with some weak copper mineralization and manganese oxides. The specimen is approximately 15x20 cm. Collected in 1975. Photo courtesy of R. Foley.

Cheers!

Steve]]> Stephen Rose Scrapbook Thu, 22 Mar 2012 00:15:32 +0000 http://www.mindat.org/forum.php?read,17,240944,254464#msg-254464 http://www.mindat.org/forum.php?read,17,240944,254464#msg-254464
[attachment 37161 NVMontelloCalcite.jpg]

Cheers!

Steve]]> Stephen Rose Scrapbook Tue, 06 Mar 2012 04:27:03 +0000 http://www.mindat.org/forum.php?read,17,240944,253737#msg-253737 http://www.mindat.org/forum.php?read,17,240944,253737#msg-253737
[attachment 37006 100_2079.jpg]
Overall size: 13x9x9 cm. Main crystal: 5.5x5x2.5 cm.

Tin Mountain Mine, approaching primary dump from the south. 1968
[attachment 37007 SDTinMtn1.jpg]

Tin Mountain Mine. Cut exposing pegmatite and mine workings extended into the core. Precrambrian metamorphic rocks host the pegmatite and are seen at the the top of the photograph. 1968.
[attachment 37008 SDTinMtn2.jpg]

The massive core of this deposit is largely quartz with some feldspar and muscovite. Sparse pockets contained beautiful micro spears of muscovite associated with sharp cassiterite crystals of micro to about 1 cm in size.

Cheers!

Steve]]> Stephen Rose Scrapbook Tue, 28 Feb 2012 21:38:37 +0000 http://www.mindat.org/forum.php?read,17,240944,253445#msg-253445 http://www.mindat.org/forum.php?read,17,240944,253445#msg-253445
Clear, sharp fluorite crystals to 1.5 cm. in matrix voids between intergrown baryte crystals. Overall size of specimen: 12x7x6 cm. Collected in (about) 2000.

[attachment 36939 NVBoulderHillFluoriteonBari.jpg]
Boulder Hill mine, Wellington, Douglas County, Nevada

Cheers!

Steve]]> Stephen Rose Scrapbook Sun, 26 Feb 2012 05:20:54 +0000 http://www.mindat.org/forum.php?read,17,240944,253416#msg-253416 http://www.mindat.org/forum.php?read,17,240944,253416#msg-253416 Jonathan Levinger Scrapbook Sat, 25 Feb 2012 23:06:19 +0000 http://www.mindat.org/forum.php?read,17,240944,253411#msg-253411 http://www.mindat.org/forum.php?read,17,240944,253411#msg-253411

© Patrick Gundersen

]]> Patrick Gundersen Scrapbook Sat, 25 Feb 2012 22:13:01 +0000 http://www.mindat.org/forum.php?read,17,240944,253401#msg-253401 http://www.mindat.org/forum.php?read,17,240944,253401#msg-253401 BOB HARMAN Scrapbook Sat, 25 Feb 2012 18:47:14 +0000 http://www.mindat.org/forum.php?read,17,240944,253372#msg-253372 http://www.mindat.org/forum.php?read,17,240944,253372#msg-253372

© Patrick Gundersen

]]> Patrick Gundersen Scrapbook Sat, 25 Feb 2012 07:58:34 +0000 http://www.mindat.org/forum.php?read,17,240944,253095#msg-253095 http://www.mindat.org/forum.php?read,17,240944,253095#msg-253095 [attachment 36844 FrankliniteSterlingHillNewJersey.jpg]]]> Jay Buscio Scrapbook Wed, 22 Feb 2012 17:42:31 +0000 http://www.mindat.org/forum.php?read,17,240944,253039#msg-253039 http://www.mindat.org/forum.php?read,17,240944,253039#msg-253039 BOB HARMAN Scrapbook Wed, 22 Feb 2012 02:29:11 +0000 http://www.mindat.org/forum.php?read,17,240944,252893#msg-252893 http://www.mindat.org/forum.php?read,17,240944,252893#msg-252893 ENJOY and to all the others out there.......GREAT PIX of GREAT SPECIMENS!]]> BOB HARMAN Scrapbook Mon, 20 Feb 2012 19:23:55 +0000