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Uwe Kolitsch's Photo Gallery

8PD-8L9Prosopite : CaAl2F4[(OH)4-xFx], x = 0.0–1.0

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

SEM micrograph (BSE mode) of prosopite crystal aggregates. Macroscopically, the specimen shows white, finely crystalline, small, brittle aggregates grown on quartz crystals and hematite platelets, in association with more or less violet fluorite and much hematite pigment.
Apart from trace amounts of Sr, this material is chemically pure.
Collected by Richard Bayerl in April 2013.
Copyright: © Uwe Kolitsch      Photo ID: 908179     Uploaded by: Uwe Kolitsch   View Count: 8   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

8PD-8L9Prosopite : CaAl2F4[(OH)4-xFx], x = 0.0–1.0

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

SEM micrograph (BSE mode) of prosopite crystal aggregates. Macroscopically, the specimen shows white, finely crystalline, small, brittle aggregates grown on quartz crystals and hematite platelets, in association with more or less violet fluorite and much hematite pigment.
Apart from trace amounts of Sr, this material is chemically pure.
Collected by Richard Bayerl in April 2013.
Copyright: © Uwe Kolitsch      Photo ID: 908178     Uploaded by: Uwe Kolitsch   View Count: 6   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

TMY-TF3Kaolinite Subgroup : Al2Si2O5(OH)4

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

SEM micrograph (BSE mode) of white micaceous crusts (composed of tiny pearly platelets) on corroded fluorite (matrix contains many hematite/limonite inclusions in this fluorite) reveal typical morphology of a kaolinite-group mineral.
Found by Achim Dorfschmid.
Copyright: © Uwe Kolitsch      Photo ID: 908177     Uploaded by: Uwe Kolitsch   View Count: 4   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

0A6-02LRhabdophane-(La) : La(PO4)·H2O

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

SEM micrograph (BSE mode) of sprays of Ce- and Nd-rich rhabdophane-(La).
From the former collection of Walter Lieber (Vienna), which was donated as a gift to the Natural History Museum Vienna.

Three point analyses of this material gave (at.%):
La5.2 Ce4.2 Nd3.3 Ca2.2 Pr0.8 Y0.7 Sr0.4 Sm0.3 Dy0.2 Gd0.1 P18.2 O64
La3.9 Ce3.1 Nd3.1 Ca1.4 Pr0.8 Y1.9 Ba0.3 Sm0.4 Dy0.2 Gd0.2 P17.0 Si0.1 O67
La3.5 Ce2.7 Nd2.5 Ca1.3 Pr0.6 Y1.1 Sr0.3 Sm0.4 Gd0.2 P14.8 O73
Copyright: © Uwe Kolitsch      Photo ID: 908168     Uploaded by: Uwe Kolitsch   View Count: 5   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

0A6-02LRhabdophane-(La) : La(PO4)·H2O

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

SEM micrograph (BSE mode) of a spray of Ce- and Nd-rich rhabdophane-(La).
From the former collection of Walter Lieber (Vienna), which was donated as a gift to the Natural History Museum Vienna.

Three point analyses of this material gave (at.%):
La5.2 Ce4.2 Nd3.3 Ca2.2 Pr0.8 Y0.7 Sr0.4 Sm0.3 Dy0.2 Gd0.1 P18.2 O64
La3.9 Ce3.1 Nd3.1 Ca1.4 Pr0.8 Y1.9 Ba0.3 Sm0.4 Dy0.2 Gd0.2 P17.0 Si0.1 O67
La3.5 Ce2.7 Nd2.5 Ca1.3 Pr0.6 Y1.1 Sr0.3 Sm0.4 Gd0.2 P14.8 O73
Copyright: © Uwe Kolitsch      Photo ID: 908167     Uploaded by: Uwe Kolitsch   View Count: 6   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

Airplane view of the San Rafael Rock Quarry on Point San Pedro

San Rafael Rock Quarry, San Rafael, Marin Co., California, USA

Airplane view of the San Rafael Rock Quarry on Point San Pedro.
(From Wikipedia.)
Copyright: © Walter Siegmund      Photo ID: 908156     Uploaded by: Uwe Kolitsch   View Count: 26   Approval status: Public galleries    Type: Photo - 2560 x 1920 pixels (4.9 Mpix)

MJM-A8RConnellite : Cu19(SO4)(OH)32Cl4·3H2O

Multiple photos available
Baratti slag locality, Piombino, Livorno Province, Tuscany, Italy

SEM micrograph (BSE mode) of thin connellite prisms (on the specimen they are associated with brochantite).
From specimen collected by Marco Bonifazi.
Copyright: © Uwe Kolitsch      Photo ID: 908090     Uploaded by: Uwe Kolitsch   View Count: 8   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

T1E-RF0Tennantite : Cu6[Cu4(Fe,Zn)2]As4S13, Chalcopyrite : CuFeS2, K Feldspar, Albite : Na(AlSi3O8)

Semmering basis tunnel, Gloggnitz, Industrieviertel, Lower Austria, Austria

Zn-tennantite (bright) intergrown with chalcopyrite (bright grey), K-feldspar-albite matrix of riebeckite gneiss.
SEM micrograph (BSE mode).

This material was described in:
Kolitsch, U., Auer, C., Schachinger, T., Slama, M. (2018): 2093) Aeschynit-(Y), Allanit-(Ce), Ankerit, Ankylith-(Ce), Bastnäsit-(Ce), Cassiterit, Cubanit, Fergusonit-(Y) (?), Hingganit-(Y), Ilmenit, Rutil, Synchisit-(Y), Synchisit-(Ce), Thorit, Xenotim-(Y) und Zirkon vom niederösterreichischen Anteil des Semmering-Basistunnels, Niederösterreich. Pp. 231-236 in Walter, F. et al. (2018): Neue Mineralfunde aus Österreich LXVII. Carinthia II, 208./128., 185-254.
Copyright: © Uwe Kolitsch      Photo ID: 906726     Uploaded by: Uwe Kolitsch   View Count: 2   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

685-H01Zircon : Zr(SiO4), K Feldspar, Quartz : SiO2

Semmering basis tunnel, Gloggnitz, Industrieviertel, Lower Austria, Austria

Partly fractured zircon (grey) in K-feldspar-quartz matrix of strongly deformed riebeckite gneiss.
SEM micrograph (BSE mode).

This material was described in:
Kolitsch, U., Auer, C., Schachinger, T., Slama, M. (2018): 2093) Aeschynit-(Y), Allanit-(Ce), Ankerit, Ankylith-(Ce), Bastnäsit-(Ce), Cassiterit, Cubanit, Fergusonit-(Y) (?), Hingganit-(Y), Ilmenit, Rutil, Synchisit-(Y), Synchisit-(Ce), Thorit, Xenotim-(Y) und Zirkon vom niederösterreichischen Anteil des Semmering-Basistunnels, Niederösterreich. Pp. 231-236 in Walter, F. et al. (2018): Neue Mineralfunde aus Österreich LXVII. Carinthia II, 208./128., 185-254.
Copyright: © Uwe Kolitsch      Photo ID: 906725     Uploaded by: Uwe Kolitsch   View Count: 3   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)

P1N-LC5Xenotime-(Y) : Y(PO4), Zircon : Zr(SiO4), Quartz : SiO2, K Feldspar

Semmering basis tunnel, Gloggnitz, Industrieviertel, Lower Austria, Austria

Xenotime-(Y) as very thin crack fillings (bright grey) in zircon (grey); in quartz-K-feldspar matrix of riebeckite gneiss.
SEM micrograph (BSE mode).

This material was described in:
Kolitsch, U., Auer, C., Schachinger, T., Slama, M. (2018): 2093) Aeschynit-(Y), Allanit-(Ce), Ankerit, Ankylith-(Ce), Bastnäsit-(Ce), Cassiterit, Cubanit, Fergusonit-(Y) (?), Hingganit-(Y), Ilmenit, Rutil, Synchisit-(Y), Synchisit-(Ce), Thorit, Xenotim-(Y) und Zirkon vom niederösterreichischen Anteil des Semmering-Basistunnels, Niederösterreich. Pp. 231-236 in Walter, F. et al. (2018): Neue Mineralfunde aus Österreich LXVII. Carinthia II, 208./128., 185-254.
Copyright: © Uwe Kolitsch      Photo ID: 906724     Uploaded by: Uwe Kolitsch   View Count: 2   Approval status: Public galleries    Type: Photo - 5120 x 3840 pixels (19.7 Mpix)
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