| View previous topic :: View next topic |
| Author |
Message |
Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
|
 Posted: Jan 30, 2013 14:28 Post subject: Re: Collection of Michael Shaw |
|
|
Hi Michael,
Beautiful collection and superb photography!!
_________________
hogwild |
|
| Back to top |
|
 |
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Jan 31, 2013 08:39 Post subject: Re: Collection of Michael Shaw |
|
|
Thanks for your comment Don. I'm still drooling over your Graves Mt. rutile. Fabulous specimen.
Michael
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Jan 31, 2013 16:07 Post subject: Re: Collection of Michael Shaw |
|
|
A few more specimens from Cavnic illustrating the diversity of minerals found there.
| Description: |
Chalcopyrite
Boldut Mine, Cavnic, Maramures, Romania
5.8 x 6.9 cm
A spherical aggregate of brassy chalcopyrite with quartz accents. Collected in 2004. |
|
| Viewed: |
48149 Time(s) |
|
| Description: |
Orpiment
Cavnic, Maramures, Romania
6.6 x 7.1 cm.
Orange and brown orpiment partially covering a matrix of white crystallized calcite. |
|
| Viewed: |
48160 Time(s) |
|
| Description: |
Quartz
Boldut Mine, Cavnic, Maramures, Romania
3.5 x 5.5 cm.
Transparent quartz, light tan dolomite and small metallic galena cubes. Collected in the 1980s. |
|
| Viewed: |
48116 Time(s) |
|
| Description: |
Gypsum
Cavnic Mine, Cavnic, Maramures, Romania
10.0 x 18.0 cm.
Creamy to straw-colored, bladed, gypsum crystals covering an undulating, thin shell of quartz. Collected in 1990. |
|
| Viewed: |
48122 Time(s) |
|
|
|
| Back to top |
|
|
GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
|
| Posted: Jan 31, 2013 16:56 Post subject: Re: Collection of Michael Shaw |
|
|
| Impressive and broad collection from Romania!
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 01, 2013 10:30 Post subject: Re: Collection of Michael Shaw |
|
|
Thank you Bob. I have really enjoyed assembling this Romanian collection over the years. Sadly, specimens from these classic localities are becoming more and more difficult to find each year.
Today's post will finish Cavnic, and I hope to finish Romania tomorrow with a couple of specimens from Baiut as well as several odds and ends from localities outside Maramures.
Michael
| Description: |
Calcite
Boldut Mine, Cavnic, Maramures, Romania
5.0 x 5.5 cm.
Pale pink manganoan calcites. The angle at which the two crystals intersect make me think that these are possible twinned on the 'butterfly' law. |
|
| Viewed: |
48107 Time(s) |
|
| Description: |
Sphalerite
Cavnic, Maramures, Romania
6.1 x 7.5 cm.
Lustrous slightly translucent crystals of twinned sphalerite to 2.0 cm. on a matrix of crystallized white calcite and quartz. |
|
| Viewed: |
48082 Time(s) |
|
| Description: |
Calcite
Boldut Mine, Cavnic, Maramures, Romania
8.4 x 12.0 cm.
Light tan spherical calcite aggregates partially covering the terminations of quartz crystals associated with minor pyrite and sphalerite. |
|
| Viewed: |
48092 Time(s) |
|
| Description: |
Rhodochrosite
Cavnic, Maramures, Romania
7.7 x 9.5 cm.
Rhodocrosite replacing platy calcite crystals with small metallic black tetrahedrite crystals on a matrix of massive white calcite and tetrahedrite. |
|
| Viewed: |
48104 Time(s) |
|
|
|
| Back to top |
|
|
Roger Warin
Joined: 23 Jan 2013
Posts: 1237
|
| Posted: Feb 01, 2013 10:54 Post subject: Re: Collection of Michael Shaw |
|
|
Superb minerals, amazing pictures.
Roger.
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 02, 2013 13:45 Post subject: Re: Collection of Michael Shaw |
|
|
Thank you for your comment Roger.
Today I will finish up Romania with a stibnite specimen from Baiut, the easternmost locality in the Maramures district. Baiut is situated about 32 km southeast of Baia Mare and is known for its thick stibnite crystals with flattish terminations. Although 51 different species have been recorded there, apparently there are few minerals of importance to the collector apart from stibnite. Or, perhaps the other minerals never reached the U.S. markets. For whatever reason, one does not see much other than stibnite from this location.
I would also like to show a few images of specimens in my collection that are from other areas of Romania. The Ocna de Fier Mine in the Banat Mts. has been mined for iron ore since the middle ages. Although never as common as specimens from Maramures, this Fe-Cu skarn-type deposit has produced some nice minerals. Lastly, what collection from Romania would be complete without a specimen from the ancient mines at Rosia Montana.
Regards,
Michael
| Description: |
Stibnite
Poiana Botizi Mine, Baiut, Maramures, Romania
5.4 x 6.5 cm.
Stout lead-gray stibnite crystals with low angle terminations typical of the locality. Collected in the 1980s. |
|
| Viewed: |
47910 Time(s) |
|
| Description: |
Chalcopyrite
Rodna, Bistrita-Nasaud Co., Romania
6.5 x 9.0 cm.
A large chalcopyrite crystal with flat gray quartz pseudomorphs after pyrrhotite and small black tetrahedrites crystals. |
|
| Viewed: |
47909 Time(s) |
|
| Description: |
Hematite
Ocna de Fier, Banat Mts., Caras-Severin Co., Romania
4.3 x 6.0 cm.
Finely bladed lustrous black hematite rosettes associated with colorless quartz crystals. Collected in the 1970s. |
|
| Viewed: |
47934 Time(s) |
|
| Description: |
Calcite
Ocna de Fier, Banat Mts., Caras-Severin Co., Romania
4.6 x 7.0 cm.
A group of creamy white scalenohedrons with a reddish tinge due to hematite. |
|
| Viewed: |
47973 Time(s) |
|
| Description: |
Gold
Rosia Montana, Alba Co., Romania
3.2 cm.
Formerly known as Verespatak, Rosia Montana was mined by the Romans 2000 years ago. |
|
| Viewed: |
47947 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 03, 2013 17:06 Post subject: Re: Collection of Michael Shaw |
|
|
Now that I have finished showing much of my Romanian collection, I tried to decide where to go next. While browsing through some photos, I came across a few Tsumeb pieces that I thought were worthy of posting. At one time I gave serious thought to assembling a Tsumeb collection. I did manage to put together a modest suite of minerals from Tsumeb, but since there were quite a few other collectors that already had fantastic Tsumeb collections, I decided to focus my energies elsewhere. That said, no worldwide collection would be complete without a few representative pieces from one of the world's greatest mineral localities.
Michael
| Description: |
Calcite
Tsumeb Mine, Tsumeb, Namibia
5.7 x 8.1 cm.
Intergrown rhombs of colorless calcite to 1.5 cm on edge dusted with sparkly light green duftite. |
|
| Viewed: |
47992 Time(s) |
|
| Description: |
Malachite ps. azurite
Tsumeb Mine, Tsumeb, Namibia
4.6 x 4.5 cm.
Sharply formed bright green malachite crystals with a feathery chatoyance pseudomorphing azurite. |
|
| Viewed: |
47885 Time(s) |
|
| Description: |
Mottramite
Tsumeb Mine, Tsumeb, Namibia
4.5 x 7.3 cm.
Arborescent olive-green mottramite on flattened rhombs of colorless calcite, some of which have reddish tints due to included hematite. |
|
| Viewed: |
47914 Time(s) |
|
| Description: |
Azurite
Tsumeb Mine, Tsumeb, Namibia
4.5 x 6.7 cm.
Parallel growth of lustrous dark blue azurite crystals partially altered to malachite. |
|
| Viewed: |
47924 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 04, 2013 11:53 Post subject: Re: Collection of Michael Shaw |
|
|
Today's post includes a few more of the common species at Tsumeb. I have photographed the dioptase on several occasions, and while the color is pretty close, no amount of adjustment I make renders a really true color. The last piece is one that I acquired recently, more for it's interest as a pseudomorph. It was once in the collection of Ed Swoboda and the previous labels that accompanied the specimen had some interesting notes. Apparently, noted Tsumeb dealers, the Zwiebel's, acquired a small lot of interesting pseudomorphs from a miner in mid-1980. Among them were a few specimens of willemite after azurite and smithsonite after cerussite. This piece was among the 20 or so specimens from that find. That pretty much finishes my Tsumeb collection, so I'm thinking maybe Dal'negorsk next.
Michael
| Description: |
Dioptase
Tsumeb Mine, 32 Level, Tsumeb, Namibia
4.5 x 6.7 cm
Lustrous, dark emerald green crystals to 1.2 cm on rhombic white calcite. |
|
| Viewed: |
47992 Time(s) |
|
| Description: |
Smithsonite
Tsumeb Mine, Tsumeb, Namibia
6.3 x 8.3 cm.
Small pink rhombs of cobaltian calcite covering a sulfide rich matrix. |
|
| Viewed: |
47834 Time(s) |
|
| Description: |
Smithsonite
Tsumeb Mine, Tsumeb, Namibia
4.4 x 6.3 cm.
Botryoidal cuprian smithsonite associated with yellow mimetite. |
|
| Viewed: |
47825 Time(s) |
|
| Description: |
Smithsonite
Tsumeb Mine, Tsumeb, Namibia
4.0 x 7.8 cm.
Pale tan rhombs of smithsonite to 1.2 cm. |
|
| Viewed: |
47809 Time(s) |
|
| Description: |
Mimetite
Tsumeb Mine, Tsumeb, Namibia
5.5 x 8.7 cm.
Spiky yellow mimetite crystals averaging 4-6 mm in length with bubbly white calcite, minor malachite and reddish iron oxide included calcite. |
|
| Viewed: |
47809 Time(s) |
|
| Description: |
Cerussite
Tsumeb Mine, Tsumeb, Namibia
2.5 x 4.1 cm.
Colorless to smoky gray twinned cerussite. |
|
| Viewed: |
47824 Time(s) |
|
| Description: |
Smithsonite ps. cerussite
Tsumeb Mine, Tsumeb, Namibia
4.3 x 4.6 cm.
Drusy green cuprian smithsonite replacing cerussite with pink dolomite and colorless calcite on the reverse side. |
|
| Viewed: |
47835 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 05, 2013 16:20 Post subject: Re: Collection of Michael Shaw |
|
|
Today I will start with a few specimens from Dal'negorsk - one of my top 10 favorite localities.
| Description: |
Calcite
Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
4.1 x 4.6 cm.
Two generations of scalenohedral calcites ranging in color from honey-colored to colorless, with rod-shaped crystals of milky-white aragonite. |
|
| Viewed: |
47715 Time(s) |
|
| Description: |
Calcite
Vtoroy Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
6.2 x 8.4 cm.
Multiple stacks of pale pink lenticular calcites on resinous dark brown sphalerite with several small transparent quartz crystals. Collected in winter 2011. |
|
| Viewed: |
47748 Time(s) |
|
| Description: |
Fluorite
1st Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
8.8 x 12.4 cm.
Frosted green octahedral fluorite crystals to 1.8 cm on edge covering a layer of drusy white quartz with colorless calcite. |
|
| Viewed: |
47760 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 06, 2013 09:58 Post subject: Re: Collection of Michael Shaw |
|
|
More from Dal'negorsk today; all from the Nikolaevskiy Mine.
| Description: |
Sphalerite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
6.6 x 7.0 cm.
Complex black sphalerite crystal to 3.5 cm featuring lustrous stepped
trigon faces associated with small quartz crystals. |
|
| Viewed: |
48950 Time(s) |
|
| Description: |
Galena
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
5.3 x 5.7 cm.
Lustrous, bright galena crystals with equal development of cube and octahedron associated with brassy chalcopyrite and minor pyrrhotite |
|
| Viewed: |
48930 Time(s) |
|
| Description: |
Calcite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
5.1 x 7.0 cm.
Intergrown groups of curved lenticular calcite crystals. These were from a unique pocket found in early 2005. |
|
| Viewed: |
48927 Time(s) |
|
| Description: |
Fluorite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
5.2 x 6.1 cm.
Water clear cubic fluorite crystals to 2.0 cm. on a light tan siderite matrix with several small quartz crystals. |
|
| Viewed: |
48921 Time(s) |
|
|
|
| Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
|
| Posted: Feb 06, 2013 10:00 Post subject: Re: Collection of Michael Shaw |
|
|
| What a wonderful clear Dal'negorsk fluorite, wow!
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 07, 2013 17:17 Post subject: Re: Collection of Michael Shaw |
|
|
Thanks Tobi. Today's post includes another fluorite from the Nikolaevskiy Mine, but this one has a very different habit.
| Description: |
Fluorite
Nikolaevskiy Mine, Da'negorsk, Primorskiy Kray, Russia
5.0 x 9.0 cm.
Colorless fluorite crystals to 2.5 cm with small quartz crystals and drusy siderite. The fluorites exhibit a modified dodecahedral habit and textured surfaces. |
|
| Viewed: |
48823 Time(s) |
|
| Description: |
Pyrrhotite
Nikolaevskiy Mine, Da'negorsk, Primorskiy Kray, Russia
4.5 x 5.0 cm.
Thick hexagonal prisms to 5 cm on a small matrix composed of fine needle-like quartz crystals. |
|
| Viewed: |
48943 Time(s) |
|
| Description: |
Calcite
Nikolaevskiy Mine, Da'negorsk, Primorskiy Kray, Russia
5.2 x 7.0 cm.
Bundles of tightly-packed scalenohedral manganoan calcite to 3.5 cm. that remind me of the calcites from Pachapaqui. Collected in August 2011. |
|
| Viewed: |
48879 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 19, 2013 10:50 Post subject: Re: Collection of Michael Shaw |
|
|
After spending the last week in Tucson and returning home with a few new rocks, it's time to study the new additions and catalog everything. The displays at the main show were great and we even had time to attend a couple good presentations. We enjoyed a week of visiting and catching up with many friends, including the illustrious host of this forum.
Today I'll continue with a few specimens from the Nikolaevskiy Mine at Dal'negorsk.
| Description: |
Hematite ps. ilvaite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
3.5 x 6.5 cm
Elongated prismatic crystals of ilvaite have been partially replaced by hematite and dusted with a sparkly druse of micro quartz. Collected in 2005. |
|
| Viewed: |
48769 Time(s) |
|
| Description: |
Siderite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
4.2 x 5.7 cm.
Tan spheres of siderite that look like they are undergoing mitosis. |
|
| Viewed: |
48745 Time(s) |
|
| Description: |
Ilvaite on quartz
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
4.4 x 5.8 cm.
Doubly terminated ilvaite crystals scattered over a quartz matrix. |
|
| Viewed: |
48786 Time(s) |
|
| Description: |
Calcite
Nikolaevskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
9.6 x 11.1 cm.
This calcite is the newest addition to my Dal'negorsk suite - obtained at the 2013 Tucson Show. |
|
| Viewed: |
48653 Time(s) |
|
|
|
| Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2249
Location: Oklahoma
|
| Posted: Feb 20, 2013 12:12 Post subject: Re: Collection of Michael Shaw |
|
|
Today's post includes a few more pieces from the mines at Dal'negorsk, including the Bor Pit, 1st Sovietskiy, Vtoroy Sovietskiy, and Verchniy mines.
| Description: |
Datolite
Bor Pit, Dal'negorsk, Primorskiy Kray, Russia
6.8 x 7.0 cm
A group of lustrous blocky green and yellow datolite crystals partially coated with sugary-textured fluorapophyllite. Small axinite crystals are also present on a small piece of matrix on the back side of the specimen. |
|
| Viewed: |
48792 Time(s) |
|
| Description: |
Sphalerite
Vtoroy Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
5.2 x 10.5 cm.
Lustrous, black, twinned sphalerite crystals to 1.0 cm preferentially coated with a druse of brown siderite. |
|
| Viewed: |
48655 Time(s) |
|
| Description: |
Calcite
First Sovietskiy Mine, Dal'negorsk, Primorskiy Kray, Russia
4.0 x 5.5 cm.
An intergrown group of colorless tabular hexagonal crystals associated with a small piece of green fluorite. |
|
| Viewed: |
48595 Time(s) |
|
| Description: |
Quartz
Vtoroy Sovietskiy mIne, Dal'negorsk, Primorskiy Kary, Russia
9.0 x 12.0 cm.
A jackstraw group of slender orange quartz crystals partially coated with a second generation of colorless quartz from the find in 1996. |
|
| Viewed: |
48635 Time(s) |
|
| Description: |
Pyrite
Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
5.5 x 8.0 cm.
A floater group of brassy pyrite crystals forming rosettes to 1.5 cm. Difficult to photograph because of the high luster and multitude of crystal faces. |
|
| Viewed: |
48651 Time(s) |
|
| Description: |
Calcite
Verchniy Mine, Dal'negorsk, Primorskiy Kray, Russia
3.5 x 10.0 cm.
Scalenohedral calcite crystals to 4.0 cm. perched on a column of arborescent tan calcite and quartz. |
|
| Viewed: |
48626 Time(s) |
|
|
|
| Back to top |
|
|
|
FAQ 
Register
Log in
Forgotten your password?
