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Tobi
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Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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 Posted: Feb 25, 2015 11:20 Post subject: Re: Collection of Michael Shaw |
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Michael, that red quartz is such a wonderful specimen, congratulations! As a quartz collector, I really envy you for having such a beauty :-)
And, Pierre: | Pierre Joubert wrote: | | I immediately thought, 'what a nice Orange river red quartz' . I did not even know you get these in Morocco! Very nice! |
I thought EXACTLY the same, both that it comes from Orange River and that I have never seen such a thing before from Morocco ... well, and of course I also thought it was very nice :-)
Tobi
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Michael Shaw
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Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Feb 25, 2015 12:56 Post subject: Re: Collection of Michael Shaw |
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| Thank you Pierre and Tobi. These red quartz specimens from Morocco were new at Tucson. There were quite a few of them, so no doubt you will see them at future shows. I do not have an Orange River quartz for comparison, but they do look somewhat similar. The cores of the Moroccan crystals (at least in my specimen) are colorless and transparent. These crystals then were overgrown with a second generation of quartz with uniform inclusions of iron oxide.
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4248
Location: Germany
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| Posted: Feb 25, 2015 13:51 Post subject: Re: Collection of Michael Shaw |
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It's great to see how Morocco always surprises with great new finds, especially quartz specimens. The last really great new find of quartz that I remember were the stunning combinations of quartz with azurite, malachite and red iron ore from Mecissi. But when you say that these red ones were new in Tucson, I don't wonder why I haven't heard of them before ...
Great stuff!
Tobi
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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| Posted: Feb 25, 2015 14:12 Post subject: Re: Collection of Michael Shaw |
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| crosstimber wrote: | | Thank you Pierre and Tobi. These red quartz specimens from Morocco were new at Tucson. There were quite a few of them, so no doubt you will see them at future shows. I do not have an Orange River quartz for comparison, but they do look somewhat similar. The cores of the Moroccan crystals (at least in my specimen) are colorless and transparent. These crystals then were overgrown with a second generation of quartz with uniform inclusions of iron oxide. |
Hi Michael, you say that: 'These crystals then were overgrown with a second generation of quartz with uniform inclusions of iron oxide'. As far as I know, the Orange river reds are first generation quartz with a coating of hematite and finaly a second generation overgrowth of clear quartz. If the final growth is more than a thin film, it is a phantom quartz. I would love to have one of these Moroccan reds to study it. Best regards.
_________________
Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 01, 2015 12:58 Post subject: Re: Collection of Michael Shaw |
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Some of Ross Lillie's collection from the southern Illinois fluorspar district has filtered down through several dealers and Jared Freiburg from SAGA minerals had about 2 dozen flats of this material at Tucson. I enjoyed looking through these and reading Ross' detailed comments concerning the date collected, mine level, paragenesis, etc. I ended up selecting a half dozen pieces which were somewhat unique and represented 3 different mines. I'll start of with a delicate celestite fan from the Minerva Mine.
| Mineral: | Celestine |
| Locality: | | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA |  |
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| Dimensions: | 3.1 x 8.2 cm |
| Description: |
A fan-shaped group of pale blue celestite with a fine bladed habit
collected from the Rosiclare Level during advance mining in 1993. |
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| Viewed: |
39756 Time(s) |
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| Mineral: | Celestine |
| Locality: | | Minerva I Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 3.1 x 8.2 cm |
| Description: |
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| Viewed: |
39786 Time(s) |
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| Mineral: | Calcite |
| Locality: | | Mahoning No. 4 Mine, Ozark-Mahoning group, Cave-in-Rock Sub-District, Hardin County, Illinois, USA | |
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| Description: |
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| Viewed: |
39774 Time(s) |
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| Mineral: | Calcite |
| Locality: | | Rosiclare, Rosiclare Sub-District, Hardin County, Illinois, USA | |
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| Dimensions: | 7.1 x 8.0 cm |
| Description: |
| An unusual calcite consisting of flattened scalenohedral crystals aligned in a parallel orientation with cream colored barite and a druse of tiny purple fluorites. This piece fluoresces orange under SW UV, and according to Ross' notes, this was indicative of the vein type deposits in the Rosiclare District. |
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39752 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 11, 2015 15:59 Post subject: Re: Collection of Michael Shaw |
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Here are a few new fluorite pieces in the collection. Locality details on the last two pieces are sketchy, but I'm confident that more specific information will eventually be revealed. The 2nd piece was reportedly found during construction of a high-speed railroad tunnel in 2014, but the language barrier prevented me from finding out much more about the location.
| Mineral: | Fluorite |
| Locality: | | East Faircloth, Faircloth Veins, Mundy's Landing, Harrodsburg, Woodford County, Kentucky, USA | |
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| Dimensions: | 6.8 x 9.1 cm |
| Description: |
| An intergrown mounded aggregate of pale purple fluorite crystals with darker purple rims associated with cream-colored Baryte. |
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37099 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Fujian Province, China | |
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| Dimensions: | 5.0 x 7.7 cm. |
| Description: |
| Several medium green cube-octahedral fluorite crystals composed of step-like growths of small cubes on a breccia shard with quartz. |
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37135 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Henan Province, China | |
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| Dimensions: | 4.5 x 7.0 cm |
| Description: |
Xinjian, Henan Province, China.
Spherical aggregate of blue-green fluorite consisting of a stepped growth of small cubes on a small shard of quartz. |
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| Viewed: |
37080 Time(s) |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 14, 2015 14:45 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Galena |
| Locality: | | Fletcher Mine, West Fork, Viburnum Trend District, Reynolds County, Missouri, USA | |
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| Dimensions: | 4.2 x 6.3 cm |
| Description: |
| Bright spinel-twinned galena crystals associated with small white rhombs of dolomite from the Big Bear Orebody. Mined late 2014 or early 2015. |
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37006 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | La Viesca Mine, La Collada mining area, Huergo, Siero, Comarca Oviedo, Principality of Asturias (Asturias), Spain | |
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| Dimensions: | 6.8 x 10.5 cm |
| Description: |
| Intergrown cubic crystals of pale lavender fluorite with dodecahedral edge modifications and mosaic growth features on some faces. |
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| Viewed: |
36999 Time(s) |
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| Mineral: | Topaz |
| Locality: | | Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region (Mandalay Division), Myanmar (Burma) | |
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| Dimensions: | 2.8 x 5.1 cm |
| Description: |
| A single transparent topaz that is colorless and gemmy throughout. The prism faces have a glassy luster and the termination has a frosted surface. |
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37015 Time(s) |
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Carles Millan
Site Admin
Joined: 05 May 2007
Posts: 1534
Location: Catalonia
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| Posted: Mar 14, 2015 15:19 Post subject: Re: Collection of Michael Shaw |
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| Excellent specimens and great photos, Michael. All of the last three. I especially like the twinned galena.
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Mar 14, 2015 15:49 Post subject: Re: Collection of Michael Shaw |
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I like the spinel- twinned galena crystals also, Michael.
_________________
hogwild |
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 14, 2015 17:26 Post subject: Re: Collection of Michael Shaw |
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Thanks Carles and Don. I was especially pleased to find the twinned galena as it is my favorite mineral.
Michael
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 18, 2015 16:57 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Quartz |
| Locality: | | Hachupa, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan | |
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| Dimensions: | 3.2 x 5.8 cm |
| Description: |
| A glassy doubly terminated quartz crystal that exhibits a Tessin habit and has a small patch of acicular golden rutile on one prism face. |
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| Viewed: |
36783 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Hachupa, Shigar District, Gilgit-Baltistan (Northern Areas), Pakistan | |
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| Dimensions: | 3.2 x 5.8 cm |
| Description: |
| Same specimen viewed from the side. |
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| Viewed: |
36796 Time(s) |
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Martin Rich
Joined: 15 Aug 2013
Posts: 127
Location: Lower Austria
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| Posted: Mar 18, 2015 17:09 Post subject: Re: Collection of Michael Shaw |
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Michael,
the galenite from the Fletcher Mine is very aesthetic in my eyes.
Martin
_________________
We are living on the matrix. |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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| Posted: Mar 18, 2015 20:15 Post subject: Re: Collection of Michael Shaw |
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| Very cool tessin.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 18, 2015 20:42 Post subject: Re: Collection of Michael Shaw |
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| Thank you for your comments Martin and Bob. BTW Bob, that quartz was purchased this year in Tucson for under $10, which goes to show that if you are willing to work hard, there are still bargains to be had.
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Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2244
Location: Oklahoma
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| Posted: Mar 20, 2015 09:27 Post subject: Re: Collection of Michael Shaw |
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...
| Mineral: | Barite |
| Locality: | | Maine Mine, Les Reclesnes, Cordesse, Lucenay-l'Évêque, Autun District, Saône-et-Loire, Bourgogne-Franche-Comté, France | |
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| Dimensions: | 6.2 x 6.7 cm |
| Description: |
| A classic group of lustrous amber-gold chisel-shaped Baryte crystals. |
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| Viewed: |
36592 Time(s) |
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| Mineral: | Tremolite |
| Locality: | | Hughes property, Minden Township, Haliburton County, Ontario, Canada | |
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| Dimensions: | 3.2 x 3.7 cm |
| Description: |
| Several intergrown prismatic glassy green tremolite crystals. The crystals exhibit some translucency and have distinct terminations. |
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| Viewed: |
36678 Time(s) |
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