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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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 Posted: Apr 13, 2013 12:10 Post subject: Re: Collection of Mark Ost |
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A small but nicely arranged Smokey Quartz with Clinozoisite and Orthoclase
| Description: |
Quartz, Clinozoisite, and Orthoclase
Strzegom Granite Quarry, Lower Silesia, Poland
3.7cm x 3.3cm x 2.6cm |
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29480 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 13, 2013 17:40 Post subject: Re: Collection of Mark Ost |
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A Moroccan Azurite and Malachaite that has multiple crystal habits for both minerals on this one piece. A really nice trip under the microscope
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Azurite and Malachite on Limonite covered Quartz.
M'Cissi, Er Rachidia, Morocco
6.7cm x 5.4cm x 3.1cm |
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29379 Time(s) |
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| Description: |
Azurite and Malachite on Limonite covered Quartz.
M'Cissi, Er Rachidia, Morocco
2mm x 2mm |
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29412 Time(s) |
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| Description: |
Azurite and Malachite on Limonite covered Quartz.
M'Cissi, Er Rachidia, Morocco
5mm x 5mm |
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29403 Time(s) |
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| Description: |
Malachite
M'Cissi, Er Rachidia, Morocco
1mm x 1mm |
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29408 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 17, 2013 20:54 Post subject: Re: Collection of Mark Ost |
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A lovely miniature Fluorite with nice zoning and very nice ultraviolet zoned response.
| Description: |
Fluorite
Hameda, Sidi Kacem Province, Morocco
2.5cm x 2cm x 3 cm |
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| Viewed: |
29235 Time(s) |
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| Description: |
Fluorite
Hameda, Sidi Kacem Province, Morocco
2.5cm x 2cm x 3 cm |
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29229 Time(s) |
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| Description: |
Fluorite
Hameda, Sidi Kacem Province, Morocco
2.5cm x 2cm x 3 cm |
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| Viewed: |
29260 Time(s) |
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| Description: |
Fluorite
Hameda, Sidi Kacem Province, Morocco
2.5cm x 2cm x 3 cm |
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29285 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 17, 2013 21:08 Post subject: Re: Collection of Mark Ost |
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Okenite under the microscope. Very fine acicular crystals. The ball diameter is approximately 1 mm. The single crystal very fine.
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Okenite
Khnadivali Quarry, Mumbai, Maharashtra, India
1mm diameter |
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| Viewed: |
29212 Time(s) |
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| Description: |
Okenite
Khnadivali Quarry, Mumbai, Maharashtra, India
1mm x Sub mm |
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| Viewed: |
29242 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 25, 2013 21:02 Post subject: Re: Collection of Mark Ost |
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Green Fluorapatite and Hyalite Opal from Mexico. Nice color patterns in the crystal.
| Description: |
Fluorapatite
Cerro de Mercado Mine, Victoria de Durango, Durango, Mexico
1.5cm x 1cm x1cm |
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| Viewed: |
28992 Time(s) |
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| Description: |
Fluorapatite
Cerro de Mercado Mine, Victoria de Durango, Durango, Mexico
1.5cm x 1cm x1cm |
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| Viewed: |
29022 Time(s) |
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| Description: |
Fluorapatite/Hyalite Opal UV
Cerro de Mercado Mine, Victoria de Durango, Durango, Mexico
13cm x 9cm x 5cm |
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29042 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 25, 2013 21:12 Post subject: Re: Collection of Mark Ost |
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Malachite and Quartz detail from the Ex Folch Collection
| Description: |
Malachite
Irhoud Mine, Saji, Doukala, Abda, Morocco
.5cm x .5cm x.5cm |
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| Viewed: |
28680 Time(s) |
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| Description: |
Quartz
Irhoud Mine, Saji, Doukala, Abda, Morocco
.5cm x .5cm x.5cm |
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28692 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 25, 2013 21:23 Post subject: Re: Collection of Mark Ost |
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Topaz from Utah on Rhyolite matrix. Wah Wah is an American Indian word for Canadian goose. Sample from the Wah Wah Mountians
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Topaz
Wah Wah Mountains, Beaver County, Utah,USA
1cm x.5cm |
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| Viewed: |
28671 Time(s) |
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| Description: |
Topaz
Wah Wah Mountains, Beaver County, Utah,USA
1cm x.5cm |
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| Viewed: |
28701 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 25, 2013 21:32 Post subject: Re: Collection of Mark Ost |
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Sphalerite and Calcite in tabular habit
| Description: |
Sphalerite
Boldut Mine, Cavnic, Maramures, Romania
.5cm x .4cm x .2cm |
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28665 Time(s) |
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| Description: |
Sphalerite
Boldut Mine, Cavnic, Maramures, Romania
.3cm x .3cm x .3cm |
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| Viewed: |
28660 Time(s) |
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Don Lum
Joined: 03 Sep 2012
Posts: 2919
Location: Arkansas
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| Posted: Apr 25, 2013 21:41 Post subject: Re: Collection of Mark Ost |
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Mark,
You captured a nice rainbow effect in your topaz.
_________________
hogwild |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Apr 26, 2013 06:57 Post subject: Re: Collection of Mark Ost |
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| Thanks Don. I have always felt the microscope was the great equalizer in that if you have small samples that may not be world level there is always amazing things to see if you can access the tiny details and it lets everyone see what is possible. Now if I could just master the techniques such as the latest magnificent micro photos in the "Mineral Record". Those are real works of photographic art. I also thought the tourmaline, being discussed in another thread, was really nice on a small scale. Beautiful crystal, in small, in an unusual setting.
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: May 11, 2013 13:04 Post subject: Re: Collection of Mark Ost |
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Quartz with dolomite and scheelite. The scheelite is multiple crystals on the dolomite and quartz. They fluoresce a beautiful sky blue with one crystal on the dolomite being significantly more yellow perhaps due to raised molybdenum content in relation to the other crystals.
| Description: |
Quartz with Dolomite and scheelite
Mount Xuebaoding, Mainyang, Sichuan, China
10cm x 3cm x 2cm |
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28313 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: May 12, 2013 19:11 Post subject: Re: Collection of Mark Ost |
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Scheelite crystals SW UV
| Description: |
Scheelite
Mount Xuebaoding, Mainyang, Sichuan, China
2mm x2mm x 2mm |
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| Viewed: |
28248 Time(s) |
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| Description: |
Scheelite
Mount Xuebaoding, Mainyang, Sichuan, China
2mm x2mm x 2mm |
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| Viewed: |
28247 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Jun 05, 2013 05:54 Post subject: Re: Collection of Mark Ost |
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A zoned Fluorite from the Elmwood Mine Tennessee
| Description: |
Fluorite
Elmwood Mine, Tennessee, USA
7cm x 4 cm x 5cm |
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| Viewed: |
28103 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Jun 05, 2013 05:58 Post subject: Re: Collection of Mark Ost |
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Fluorite and Pyrite. Morocco
| Description: |
Fluorite and Pyrite
El Hammam, Meknes, Meknes-Tafiloalet Region
5cm x 5cm x 5 cm |
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| Viewed: |
28089 Time(s) |
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Mark Ost
Joined: 18 Mar 2013
Posts: 516
Location: Virginia Beach
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| Posted: Jun 05, 2013 06:03 Post subject: Re: Collection of Mark Ost |
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Fluorescent Talc and Tremolite in SW UV, New York USA
Yellow is talc and the orange is tremolite
| Description: |
Talc and tremolite
GTC Arnold Open Pit, Balmat , New York , USA
18cm x7 cm 13cm |
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| Viewed: |
28125 Time(s) |
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