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30 Jul-18:22:44 The mizunaka collection - quartz (Am Mizunaka)
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30 Jul-14:28:37 Re: collection of michael shaw (Michael Shaw)
30 Jul-11:26:57 Re: a nice find on a mountain walk (Marius_md)
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30 Jul-02:12:30 Re: collection of tobi (Tobi)
29 Jul-16:32:36 Re: collection of tobi (Michael Shaw)
29 Jul-14:13:46 Re: collection of tobi (Carles Millan)
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Kreuzstein

Index -> Mines and Mineral Localities

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Ru Smith

Joined: 13 Oct 2012
Posts: 362

Posted: Jun 16, 2013 13:10 Post subject: Kreuzstein

This is a fun old specimen from St Andreasberg.

Harmotome kreuzstein 1.jpg

Description:

Harmotome, cruciform twin.
St Andreasberg, Germany.
Twin is 9 mm long on 32 mm matrix.

Viewed:

16255 Time(s)

Ru Smith

Joined: 13 Oct 2012
Posts: 362

Posted: Jun 16, 2013 13:25 Post subject: Re: Kreuzstein

It needs a really good clean.

Harmotome kreuzstein 2.jpg

Description:

Harmotome, cruciform twin.
St Andreasberg, Germany.
9 mm twin on 32 mm matrix

Viewed:

16231 Time(s)

Carles Curto

Joined: 14 Sep 2006
Posts: 160
Location: Barcelona

Posted: Jun 16, 2013 13:38 Post subject: Re: Kreuzstein

Another sample from Sankt Andreasberg (type locality for the species). It was obtaned in 1967 but very probably is quite older.
4,1 x 3,7 x 2,2 cm.

harmotoma_1967_10br.jpg

Description:

Harmotome
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
4,1 x 3,7 x 2,2 cm

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16239 Time(s)

Carles Curto

Joined: 14 Sep 2006
Posts: 160
Location: Barcelona

Posted: Jun 16, 2013 13:46 Post subject: Re: Kreuzstein

A detail of the same sample.

harmotoma_1967_10br_b.jpg

Description:

Harmotome
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany
4,1x 3,7 x 2,2 cm (sample)

Viewed:

16284 Time(s)

harmotoma_1977_01br.jpg

Description:

Harmotome
Korsnäs, Vaasa, Länsi-Suomen (läani), Finland.
4,4x5,3x2,7cm. / main crystal: 0,9x0,6x0,5cm.
This (with pyrite coatings) is also an old piece is from an interesting locality

Viewed:

16254 Time(s)

harmotoma_1977_01br_b.jpg

Description:

Harmotome
Korsnäs, Vaasa, Länsi-Suomen (läani), Finland.
0,9x0,6x0,5cm (main crystal)

Viewed:

16250 Time(s)

Ru Smith

Joined: 13 Oct 2012
Posts: 362

Posted: Jun 16, 2013 14:03 Post subject: Re: Kreuzstein

Lovely specimens, Carles.

Here's a Scottish example.

Harmotome cross Scotland.jpg

Description:

Harmotome, cruciform twin.
Strontian Baryte Mine, Strontian, Scotland, UK.
6 cm calcite matrix with harmotome crystals to 8 mm.

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16313 Time(s)

Ru Smith

Joined: 13 Oct 2012
Posts: 362

Posted: Jun 16, 2013 14:09 Post subject: Re: Kreuzstein

a detail of very small (3 mm ) twin.

Germany harmotome cross 3.jpg

Description:

Harmotome, cruciform twin.
St Andreasberg, Germany.
3 mm twin.

Viewed:

16262 Time(s)

Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4251
Location: Germany

Posted: Jun 16, 2013 15:17 Post subject: Re: Kreuzstein

In https://www.mineral-forum.com/message-board/viewtopic.php?p=32247#32247 Carles Curto wrote:

Harmotome
Sankt Andreasberg, Braunschweig (dist.), Erzgebirge, Sachsen-Anhalt (land), Alemanya

Hi Carles, there's something wrong with that locality information: The famous locality of St. Andreasberg is not located in Erzgebirge, it is in the Harz Mountains (Erzgebirge is in Saxony, nearly 300 km south of it).

And the land where St. Andreasberg lies is not Sachsen-Anhalt but Lower Saxony.

https://www.mindat.org/loc-1812.html

Cheers!
Tobi

Carles Curto

Joined: 14 Sep 2006
Posts: 160
Location: Barcelona

Posted: Jun 17, 2013 05:55 Post subject: Re: Kreuzstein

Tobi wrote:

...there's something wrong with that locality information: The famous locality of St. Andreasberg is not located in Erzgebirge, it is in the Harz Mountains (Erzgebirge is in Saxony)

Thanks for your note, Tobi, I'll correct the locality.

Jordi Fabre
Overall coordinator of the Forum

Joined: 07 Aug 2006
Posts: 5093
Location: Barcelona

Posted: Jun 17, 2013 08:51 Post subject: Re: Kreuzstein

Carles Curto wrote:

Tobi wrote:

...there's something wrong with that locality information: The famous locality of St. Andreasberg is not located in Erzgebirge, it is in the Harz Mountains (Erzgebirge is in Saxony)

Thanks for your note, Tobi, I'll correct the locality.

Already corrected in: https://www.mineral-forum.com/message-board/viewtopic.php?p=32246#32246

Ru Smith

Joined: 13 Oct 2012
Posts: 362

Posted: Jun 30, 2013 18:45 Post subject: Re: Kreuzstein

One more "kreuzstein", this one of phillipsite.

Phillipsite cruciform.jpg

Description:

Phillipsite with calcite on basalt.
"Alter Stein" quarry, Allendorf, Umtal, Westerwald, Hessen, Germany.
4cm specimen with Marburg cross twins to 1 cm.

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15681 Time(s)

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