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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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 Posted: Dec 01, 2015 05:44 Post subject: Re: Collection of Gerhard Brandstetter |
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Hello Pierre,
Thank you for your kind words - your photos are by far better!
Yes - this is indeed red schorl! According to an analysis of the Broschek collection they are a mix with a minor dravite component. Very thin slides cut of large black schorl show every color of the rainbow!
My crystals are tiny and thin too - so it is possible to see normally unusual red color. If they were only a little bit thicker they would show pure black.
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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| Posted: Dec 01, 2015 06:09 Post subject: Re: Collection of Gerhard Brandstetter |
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| Gerhard Brandstetter wrote: | Hello Pierre,
thank you for your kind words - your photos are by far better!
Yes - this is indeed red Schorl! According to an analysis of Broschek collection they are a mix with a minor Dravite component. Very thin slides cut of large black Schorl show every color of the rainbow!
My crystals are tiny and thin too - so it is possible to see normally unusual red Color. Only a little bit thicker and they show a pure black. |
Hi Gerhard. Fascinating! As for my photos being far better than yours, I take it as a BIG compliment, but ...... Let me just say that I would be happy to take photos like your last few. Best regards :-)
_________________
Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: Apr 19, 2016 12:28 Post subject: Re: Collection of Gerhard Brandstetter |
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Today I have two very unusual pseudomorphs of Magnetite after Hematite for you.
We have brand new analyses about the well known "Hematite Iron Roses" with Quartz Var. Prase from Avissalos, Seriphos Island, Greece. Seems all are Magnetite pseudomorphs after Hematite!
| Mineral: | Magnetite |
| Locality: | | Avissalos Bay, Serifos Island, Cyclade Islands, Kykládes Prefecture, Aegean Islands Department (Aiyaíon), Greece |  |
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| Dimensions: | 45 mm |
| Description: |
| XRD analyzed in the University of Natural Resources and Life Sciences, Vienna. No Hematite left - this is pure Magnetite!!!! I have got this information from Peter Schlögl, a highly respected collector, dealer and personal friend. It seems all "Hematites" with Prasem Quartz are Magnetite. No Hematite was found during analysis. |
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31344 Time(s) |
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: Apr 19, 2016 12:31 Post subject: Re: Collection of Gerhard Brandstetter |
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Magnetite pseudomorph Hematite var. "Iron Roses"
XRD analyzed!
| Mineral: | Magnetite pseudomorph after hematite |
| Locality: | | Avissalos Bay, Serifos Island, Cyclade Islands, Kykládes Prefecture, Aegean Islands Department (Aiyaíon), Greece | |
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| Dimensions: | 72 mm |
| Description: |
| XRD analyzed in the University of Natural Resources and Life Sciences, Vienna. No Hematite left - this is pure Magnetite!!!! I have got this information from Peter Schlögl, a highly respected collector, dealer and personal friend. It seems all "Hematites" with Prasem Quartz are Magnetite. No Hematite was found during analysis. |
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31466 Time(s) |
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio
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| Posted: Apr 19, 2016 13:03 Post subject: Re: Collection of Gerhard Brandstetter |
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| Wonderful hematites! I especially like the second specimen.
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: Apr 19, 2016 13:05 Post subject: Re: Collection of Gerhard Brandstetter |
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Thank you - but this is Magnetite pseudomorph Hematite - not really Hematite any more.....
In my opinion a special rarity!
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Jamison Brizendine
Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio
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| Posted: Apr 20, 2016 08:36 Post subject: Re: Collection of Gerhard Brandstetter |
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| I made an Oops! This is what happens when you just look at the picture and don't read the caption.
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: Apr 20, 2016 10:20 Post subject: Re: Collection of Gerhard Brandstetter |
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| Sehr schöne Makrofotos, Gerhard :-)
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: Apr 06, 2020 07:35 Post subject: Re: Collection of Gerhard Brandstetter |
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Hi all! After a longer break i will now continue to show you some rocks from my collection. Much fun with it and stay safe!
| Mineral: | Titanite |
| Locality: | | Kristallwand, Frosnitztal, Matrei in Osttirol, Lienz District, East Tyrol, Tyrol/Tirol, Austria | |
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| Dimensions: | FOV 25 mm |
| Description: |
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| Viewed: |
21839 Time(s) |
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: May 06, 2020 13:31 Post subject: Re: Collection of Gerhard Brandstetter |
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In the past weeks I shot some photos of my Hungarian minerals. First visit was in 1981. During this time Rudabanya was nearly unknown to the western world. I was kindly invited to live in the miners home and with the help of my new friends I was able to find some nice copper minerals and other stuff. In the village I entered a small mining museum with fantastic specimens (has a new home now). To my surprise I could acquire some very good but lesser important samples direct from the museum - valued European classics now! Other rocks I bought from the miners and at some mineral shows.
So theme for this upload: Rudabanya, Hungary
| Mineral: | Azurite and Malachite pseudomorph Azurite |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 44 x 35 mm |
| Description: |
| Compared to Malachite any finds of Azurite have always been relatively rare. |
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20891 Time(s) |
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| Mineral: | Baryte |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 52 x 33 mm |
| Description: |
| One of the lesser known minerals from Rudabanya |
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| Viewed: |
20870 Time(s) |
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| Mineral: | Copper, Cuprite, Malachite, Calcite |
| Locality: | | Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 14 x 14 cm |
| Description: |
| Copper crystals on matrix have been replaced by Cuprite and Malachite. Over it is a glittering carpet of tiny calcite crystals. |
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20916 Time(s) |
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| Mineral: | Malachite pseudomorph Cuprite crystals |
| Locality: | | Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 19 x 15 cm |
| Description: |
| Malachite pseudomorph Cuprite crystals |
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| Viewed: |
20910 Time(s) |
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| Mineral: | Copper |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 67 x 62 mm |
| Description: |
| Native Copper crystals from Rudabanya |
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| Viewed: |
20843 Time(s) |
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| Mineral: | Malachite |
| Locality: | | Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 69 x 38 mm |
| Description: |
| Malachite pseudomorph Azurite crystals |
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| Viewed: |
20878 Time(s) |
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| Mineral: | Malachite pseudomorph Cuprite crystals |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 33 x 30 mm |
| Description: |
| Malachite pseudomorph Cuprite crystals |
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| Viewed: |
20928 Time(s) |
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| Mineral: | Malachite pseudomorph Cuprite crystals |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 34 x 18 mm |
| Description: |
| Malachite pseudomorph Cuprite crystals |
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| Viewed: |
20914 Time(s) |
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| Mineral: | Malachite pseudomorph Copper |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | 75 x 52 mm |
| Description: |
| Malachite pseudomorph Copper on Calcite crystals |
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| Viewed: |
20879 Time(s) |
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| Mineral: | Malachite pseudomorph Copper |
| Locality: | | Andrássy I Mine, Rudabányai Mountains, Rudabánya, Kazincbarcika District, Borsod-Abaúj-Zemplén, Hungary | |
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| Dimensions: | FOV 30 x 20 mm |
| Description: |
| Malachite pseudomorph Copper crystals |
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| Viewed: |
20891 Time(s) |
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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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| Posted: May 06, 2020 15:07 Post subject: Re: Collection of Gerhard Brandstetter |
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Hello, Gerhard.
Nice and interesting old European classics.
I like the accentuated dendritic habit of your copper.
Greetings.
Sante
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: May 07, 2020 13:00 Post subject: Re: Collection of Gerhard Brandstetter |
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Theme for today: the diversity of Austrian Fluorites, Part 1 - have fun!
| Mineral: | Fluorite |
| Locality: | | Summit cleft, Weißeck Mountain area, Murwinkel, Lungau, Salzburg, Austria | |
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| Dimensions: | 9,5 x 7,5 cm |
| Description: |
| Fluorite from the summit cleft (2650 m high) in natural light, no backlight |
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| Viewed: |
20351 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Summit cleft, Weißeck Mountain area, Murwinkel, Lungau, Salzburg, Austria | |
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| Dimensions: | 9,5 x 7,5 cm |
| Description: |
| Fluorite from the summit cleft (2650 m high) in natural light, natural backlight |
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| Viewed: |
20341 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Summit cleft, Weißeck Mountain area, Murwinkel, Lungau, Salzburg, Austria | |
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| Dimensions: | 9,5 x 7,5 cm |
| Description: |
| Fluorite from the summit cleft (2650 m high) as backlight i used an old torch |
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| Viewed: |
20337 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Summit cleft, Weißeck Mountain area, Murwinkel, Lungau, Salzburg, Austria | |
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| Dimensions: | 13 x 10 cm |
| Description: |
| Fluorite from the summit cleft (2650 m high) from Weisseck mtn., Salzburg |
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| Viewed: |
20361 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Bleiberg mining area, Gailtaler Alpen & Karnische Alpen, Carinthia/Kärnten, Austria | |
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| Dimensions: | 8 x 3,5 cm |
| Description: |
| Grey Fluorite from Bleiberg, Carinthia. Relativly rare for this famous locality |
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| Viewed: |
20343 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Eggl Alp, Dambach valley, Kirchdorf an der Krems, Upper Austria/Oberösterreich, Austria | |
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| Dimensions: | FOV 16 x 12 mm |
| Description: |
| Colorless Fluorite fromm Egglalm, Upper Austria |
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| Viewed: |
20312 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Gams bei Hieflau, Landl, Liezen District, Styria/Steiermark, Austria | |
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| Dimensions: | largest crystal 4 mm |
| Description: |
| Fluorite from Gams, Styria |
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| Viewed: |
20304 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Hirschau Quarry, Böckstein, Bad Gastein, St. Johann im Pongau, Hohe Tauern, Salzburg, Austria | |
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| Dimensions: | 9 x 6 cm |
| Description: |
| Green Fluorite octahedrons from Hirschau, Gastein Valley, Salzburg |
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| Viewed: |
20323 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Tannberg, Rosenau am Hengstpaß, Dambach valley, Kirchdorf an der Krems, Upper Austria/Oberösterreich, Austria | |
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| Dimensions: | FOV 5 x 3,5 mm |
| Description: |
| Fluorite from Tannberg mtn., Upper Austria |
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| Viewed: |
20307 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Tannberg, Rosenau am Hengstpaß, Dambach valley, Kirchdorf an der Krems, Upper Austria/Oberösterreich, Austria | |
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| Dimensions: | FOV 6 x 4 mm |
| Description: |
| Fluorite from Tannberg mtn., Upper Austria. Combination cube and octahedron |
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| Viewed: |
20401 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Tannberg, Rosenau am Hengstpaß, Dambach valley, Kirchdorf an der Krems, Upper Austria/Oberösterreich, Austria | |
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| Dimensions: | FOV 8 x 5,5 mm |
| Description: |
| Fluorite from Tannberg mtn., Upper Austria. About this locality I wrote a larger article for the german "Mineralien-Welt" |
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| Viewed: |
20383 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Knappengraben, Oberlaussa, Sankt Gallen, Liezen District, Styria/Steiermark, Austria | |
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| Dimensions: | 35 x 32 mm |
| Description: |
| Fluorite on limestone from Knappengraben, Oberlaussa, Styria |
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| Viewed: |
20301 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Lead mines, Obernberg am Brenner, Innsbruck-Land District, Tyrol/Tirol, Austria | |
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| Dimensions: | 16 x 14 mm |
| Description: |
| Fluorite from Obernberg am Brenner, Tyrol. Combination cube and octahedron |
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| Viewed: |
20301 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Lead mines, Obernberg am Brenner, Innsbruck-Land District, Tyrol/Tirol, Austria | |
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| Dimensions: | 23 x 20 mm |
| Description: |
| Fluorite from Obernberg am Brenner, Tyrol. Combination cube and octahedron |
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| Viewed: |
20328 Time(s) |
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| Mineral: | Fluorite |
| Locality: | | Lead mines, Obernberg am Brenner, Innsbruck-Land District, Tyrol/Tirol, Austria | |
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| Dimensions: | 40 x 26 mm |
| Description: |
| Fluorite from Obernberg am Brenner, Tyrol. |
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| Viewed: |
20289 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4235
Location: Germany
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| Posted: May 08, 2020 03:44 Post subject: Re: Collection of Gerhard Brandstetter |
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Gerhard, I know that Austria has several great fluorite localities and you show us some superb examples, absolutely beautiful! My favourites are the ones from Hirschau quarry and from Knappengraben, outstandingly beautiful material :-)
Danke und bitte mehr davon :-)
Tobi
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Gerhard Brandstetter
Joined: 01 Apr 2013
Posts: 96
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| Posted: May 08, 2020 12:49 Post subject: Re: Collection of Gerhard Brandstetter |
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One of my main interests are the classic finds from old Austro-Hungarian localities. Like Banska Stiavnica (Schemmnitz) in Slovakia, featured in Minrec May/June 2016. Together with my now late Slovakian collecting partner, I could visit the old mines and several nice ex-miners. Today it seems difficult to acquire interesting specimens.
Schemnitz = Banska Stiavnica, Slovakia - Part 1
| Mineral: | Pyrargyrite |
| Locality: | | Nová Bana deposit, Nová Bana, Žarnovica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 3,5 x 2,5 mm |
| Description: |
| Pyrargyrite from Nova Bana - the western part of the Banska Stiavnica mining district |
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| Viewed: |
20113 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 75 x 25 mm |
| Description: |
| Very light Amethyst partially covered with Dolomite |
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| Viewed: |
20159 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Terézia adit (Weiden mine), Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 23 x 16,5 mm |
| Description: |
| Closeup from an etched Quartz crystal |
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| Viewed: |
20123 Time(s) |
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| Mineral: | Xanthoconite and Pyrargyrite |
| Locality: | | Nová Bana deposit, Nová Bana, Žarnovica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 2,55 x 1,9 mm |
| Description: |
| Orange Xanthoconite with elongated dark red Pyrargyrite from a find before 1918. Xanthoconite from Slovakia is an extraordinary rarity! |
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| Viewed: |
20127 Time(s) |
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| Mineral: | Pyrargyrite |
| Locality: | | Nová Bana deposit, Nová Bana, Žarnovica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 3,5 x 2,5 mm |
| Description: |
| Pyrargyrite from an old find before 1918 |
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| Viewed: |
20128 Time(s) |
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| Mineral: | Galena, Chalcopyrite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 57 x 46 mm |
| Description: |
| Galena cube on Chalcopyrite and Quartz |
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| Viewed: |
20106 Time(s) |
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| Mineral: | Argentite, Silver, Sphalerite, Pyrite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 40 x 28 mm |
| Description: |
| Tiny Silver wires on Argentite and Sphalerite with Pyrite |
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| Viewed: |
20161 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Michal mining tunnel, Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 65 x 45 mm |
| Description: |
| Amethyst from Michal mine - self collected |
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| Viewed: |
20132 Time(s) |
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| Mineral: | Sphalerite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 60 x 45 mm |
| Description: |
| Sphalerite var. "Cleiophane" from a find in 1965 |
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| Viewed: |
20111 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Terézia adit (Weiden mine), Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 11,5 x 53 mm |
| Description: |
| Amethyst from Weiden adit - self collected |
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| Viewed: |
20151 Time(s) |
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| Mineral: | Sphalerite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 53 x 48 mm |
| Description: |
| Sphalerite from Banska Stiavnica |
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| Viewed: |
20123 Time(s) |
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| Mineral: | Quartz |
| Locality: | | Šobov Quarry, Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 3,5 x 2,5 mm |
| Description: |
| Moveable gas bubble in a Quartz crystal from Sobov Quarry - self collected |
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| Viewed: |
20101 Time(s) |
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| Mineral: | Silver, Argentite, Sphalerite |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | FOV 16 x 12 mm |
| Description: |
| Tiny silver wires on Argentite and Sphalerite |
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| Viewed: |
20155 Time(s) |
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| Mineral: | Stephanite |
| Locality: | | Banska Hodrusa Mine, Hodrusa-Hámre, Slovak Republic | |
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| Dimensions: | FOV 8,5 x 6,3 mm |
| Description: |
| Small Stephanite on matrix |
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| Viewed: |
20118 Time(s) |
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| Mineral: | Chalcopyrite on Quartz |
| Locality: | | Banská Štiavnica (Schemnitz), Banská Štiavnica District, Banská Bystrica Region, Slovak Republic | |
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| Dimensions: | 7 x 4 cm |
| Description: |
| Tarnished Chalcopyrite on Quartz with minor Siderite |
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| Viewed: |
20104 Time(s) |
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Volkmar Stingl
Joined: 23 Sep 2012
Posts: 985
Location: Innsbruck
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| Posted: May 08, 2020 13:15 Post subject: Re: Collection of Gerhard Brandstetter |
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| Wow! I envy you for the last 2 fluorites from Obernberg!
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