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Tobi
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Joined: 07 Apr 2009
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Location: Germany
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Posted: Sep 03, 2011 03:37 Post subject: Re: Collection of Tobias Martin |
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Old specimens, better photos, fluorite # 3:
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Fluorite, sphalerite Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA 100 x 65 x 55 mm |
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35799 Time(s) |
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Tobi
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Location: Germany
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Posted: Oct 15, 2011 08:05 Post subject: Re: Collection of Tobias Martin |
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- Old specimen
- Better photos
- I trimmed the specimen and removed a lot of dispensable matrix
Schorl on Orthoclase.
Erongorus 166 Farm, Karibib District, Erongo Region, Namibia.
105 x 100 x 70 mm, largest schorl crystal 20 mm, largest orthoclase crystal 35 mm.
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Schorl on Orthoclase. Erongorus 166 Farm, Karibib District, Erongo Region, Namibia. 105 x 100 x 70 mm |
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Schorl on Orthoclase. Erongorus 166 Farm, Karibib District, Erongo Region, Namibia. 105 x 100 x 70 mm |
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Tobi
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Posted: Oct 15, 2011 08:11 Post subject: Re: Collection of Tobias Martin |
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- Old specimen
- Better photos
- I trimmed the specimen and removed much of the quartz layer that covered the specimen
- Due to a wrong locality provided by the vendor and some talks to garnet experts i had to correct the locality
Grossular var. Hessonite.
Žulová, Olomouc Region, Moravia, Czech Republic.
105 x 95 x 50 mm, largest crystal 20 mm.
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Grossular var. Hessonite. Žulová, Olomouc Region, Moravia, Czech Republic. 105 x 95 x 50 mm, largest crystal 20 mm. |
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Grossular var. Hessonite. Žulová, Olomouc Region, Moravia, Czech Republic. 105 x 95 x 50 mm, largest crystal 20 mm. |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: Oct 15, 2011 09:56 Post subject: Re: Collection of Tobias Martin |
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Tobi,
Nice specimens, and very good job on the trimming and preparation.
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Tobi
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Joined: 07 Apr 2009
Posts: 4102
Location: Germany
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Posted: Oct 16, 2011 05:07 Post subject: Re: Collection of Tobias Martin |
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Thank you. Actually i hate trimming minerals on my own because i always fear the one hit too much that tears of crystals or breaks specimens. But this time it worked, i could remove the schorl's matrix and the hessonite's quartz coating successfully :-)
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Carles Millan
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Joined: 05 May 2007
Posts: 1469
Location: Catalonia
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Posted: Oct 16, 2011 05:43 Post subject: Re: Collection of Tobias Martin |
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Tobias Martin wrote: | Actually i hate trimming minerals on my own because i always fear the one hit too much that tears of crystals or breaks specimens. But this time it worked, i could remove the schorl's matrix and the hessonite's quartz coating successfully :-) |
Congratulations, Tobias, but don't assume this will always be the case... Nevertheless, if you ever get wrong you must know cyanoacrylate heals almost everything, provided you don't hide that feature when labelling or publishing photos of the specimen.
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Tobi
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Posts: 4102
Location: Germany
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Posted: Oct 19, 2011 07:12 Post subject: Re: Collection of Tobias Martin |
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Carles, i don't assume it will always be the case - so i will not often do such trimming jobs on my own.
Here's another picture from my "old specimen, better photo" mission. Sorry to do like you, Carles, but i really made some lousy photos in the past, and at least some of my better specimens deserve better ones.
Topaz. Villa Garcia, Zacatecas, Mexico. 32 x 18 x 16 mm, largest crystal 9 mm.
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Topaz Villa Garcia, Zacatecas, Mexico 32 x 18 x 16 mm, largest crystal 9 mm |
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Tobi
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Posted: Oct 19, 2011 07:21 Post subject: Re: Collection of Tobias Martin |
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Another better photo of an old specimen (well, not really old, purchased half a year ago ;-))
Cavansite. Wagholi quarry, Pune District, Maharashtra, India. 40 x 30 x 25 mm, "cavansite ball" 10 mm in diameter.
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Cavansite Wagholi quarry, Pune District, Maharashtra, India 40 x 30 x 25 mm, "cavansite ball" 10 mm in diameter |
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Tobi
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Posted: Oct 19, 2011 07:31 Post subject: Re: Collection of Tobias Martin |
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And another one.
Spessartine on albite. Shigar Valley, Gilgit-Baltistan, Pakistan. 27 x 18 x 13 mm, largest crystal 5 mm.
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Spessartine on albite Shigar Valley, Gilgit-Baltistan, Pakistan 27 x 18 x 13 mm, largest crystal 5 mm. |
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Carles Millan
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Posts: 1469
Location: Catalonia
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Posted: Oct 19, 2011 15:22 Post subject: Re: Collection of Tobias Martin |
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Tobias Martin wrote: | Spessartine on albite. Shigar Valley, Gilgit-Baltistan, Pakistan. |
Fine spessartine from the Shigar Valley!
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Tobi
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Joined: 07 Apr 2009
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Location: Germany
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Posted: Oct 23, 2011 12:59 Post subject: Re: Collection of Tobias Martin |
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Carles Millan wrote: | Fine spessartine from the Shigar Valley! | Thank you, Carles!
And here's another spessartine (new specimen). From Wushan Spessartine Mine, Tongbei, Fujian Province, China. 35 x 25 x 25 mm, largest garnets measure 5 mm.
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Spessartine Wushan Spessartine Mine, Tongbei, Fujian Province, China 35 x 25 x 25 mm, largest garnets measure 5 mm |
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Tobi
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Posted: Oct 23, 2011 15:23 Post subject: Re: Collection of Tobias Martin |
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Calcite. Sarbai Mine, Kostanay Province, Kazakhstan. Specimen height 55 mm, crystal is 35 mm in diameter.
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Calcite Sarbai Mine, Kostanay Province, Kazakhstan Specimen height 55 mm, crystal is 35 mm in diameter. |
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35374 Time(s) |
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Tobi
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Location: Germany
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Posted: Oct 23, 2011 15:26 Post subject: Re: Collection of Tobias Martin |
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Halite. Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany. 230 x 120 x 40 mm, largest crystals 15 mm.
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Halite Neuhof-Ellers Potash Works, Neuhof, Fulda, Hesse, Germany 230 x 120 x 40 mm, largest crystals 15 mm. |
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35437 Time(s) |
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Tobi
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Posted: Oct 23, 2011 15:32 Post subject: Re: Collection of Tobias Martin |
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Fluorite. Okorusu Mine, Otjiwarongo District, Otjozondjupa Region, Namibia. 110 x 75 x 60 mm, largest crystal 25 mm.
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Fluorite Okorusu Mine, Otjiwarongo District, Otjozondjupa Region, Namibia 110 x 75 x 60 mm, largest crystal 25 mm. |
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35421 Time(s) |
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Tobi
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Location: Germany
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Posted: Oct 23, 2011 15:35 Post subject: Re: Collection of Tobias Martin |
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Fluorite with galena. Rogerley Mine, Weardale, North Pennines, Co. Durham, England. 80 x 70 x 30 mm, largest crystal 20 mm.
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Fluorite with galena Rogerley Mine, Weardale, North Pennines, Co. Durham, England 80 x 70 x 30 mm, largest crystal 20 mm. |
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35355 Time(s) |
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Carles Millan
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Posted: Oct 24, 2011 14:03 Post subject: Re: Collection of Tobias Martin |
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Very nice your new spessartine. Good contrast with the white matrix. By the way, what is the matrix made of? I think it must be quartz but am not sure.
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Tobi
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Posted: Oct 24, 2011 14:17 Post subject: Re: Collection of Tobias Martin |
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No, it is feldspar. There are very tiny quartz crystals among the spessartines, but the matrix is microcline.
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Tobi
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Posted: Oct 25, 2011 09:27 Post subject: Re: Collection of Tobias Martin |
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Did i ever mention that i'm addicted to Namibian minerals? ;-)
Smoky quartz (with a growing structure nearly reminiscent of a gwindel AND with some sceptered crystals) grown on a large brownish orthoclase crystal. Lattice quartz occurrence, Karibib District, Erongo Region, Namibia. 110 x 100 x 85 mm.
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Smoky quartz on orthoclase Lattice quartz occurrence, Karibib District, Erongo Region, Namibia 110 x 100 x 85 mm |
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35181 Time(s) |
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Debbie Woolf
Joined: 09 Feb 2009
Posts: 168
Location: Kent
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Posted: Oct 26, 2011 04:43 Post subject: Re: Collection of Tobias Martin |
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Tobias Martin wrote: | Did i ever mention that i'm addicted to Namibian minerals? ;-) |
I'm glad that you are as I get to see more specimens from this region via your super collection !
Although I don't think Hohenstein is correct, Hohenstein is a famous peak climb, no minerals are mined on it, it is to the right of the Hohenstein that minerals are found ... see this topic on mindat https://www.mindat.org/forum.php?read,6,178564,178984#msg-178984
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Tobi
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Posted: Oct 26, 2011 07:04 Post subject: Re: Collection of Tobias Martin |
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Hi Debbie,
nice to please you with my specimens :-)
I know there's much confusion about the localities in the Erongo Region, but my information about this smoky quartz on orthoclase pictured above is that it comes from Farm Brabant which belongs to the Hohenstein massif. I have no reason to doubt this because i know the vendor for many years from the Marburg Mineral Show and i can trust him. It was my mistake yesterday that i only wrote Hohenstein here, sorry!
But sadly i can't edit my post with the smoky quartz anymore. Maybe one of our admins could upgrade the locality information to: Farm Brabant, Hohenstein massif, Erongo Mountains, Erongo Region, Namibia ...?
__________
Corrected
Carles M.
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