emblem Technische Universität Berlin Technische Universität Berlin
Mineralogical Collections
Dr.Susanne Herting-Agthe, Sekr. BH 1, Ernst-Reuter-Platz 1, D-10587 Berlin, Germany
tel ++49 (0)30 - 314 22254, fax 314 72218, Susanne.Herting-Agthe@tu-berlin.de

    single pieces

mail contact

  • Click on the pictures and you get a magnified view, more informations and crystal drawings
  • All photographs were taken by Mrs Monika Günther, master photographer at the Institute of Applied Geosciences of the Technical University of Berlin
Calcite twins Mexico Calcite
contact twins on {21-31}
Santa Eulalia, Chihuahua, Mexico
copper, sceleton crystal, Tsumeb
octahedral skeleton crystal
Tsumeb, Namibia
epitaxy: Rutile upon Hematite Epitaxy    Rutile upon Hematite
acicular orange crystals of Rutile orientated in three directions upon a Hematite crystal
Novo Horizonte, Bahia, Brazil
Galenite twin Galenite
twin on {111}
on Siderite and Quartz
Neudorf, Harz
Galenite skeleton crystals Galenite 
cubic hopper-crystals
Tsumeb, Namibia
Kämmererite twin Kämmererite (Cr variety of Clinochlore)
twin on {001}
Kop Daglari, Turkey
Labradorite, zoned crystal, Ukraine Labradorite
zoned crystal, polished slice
Golovino, Ukraine
Malachite, pseudomorph after Azurite
Malachite pseudomorph after Azurite
rosette shaped aggregates
Tsumeb, Namibia
Marcasite, twinned Markasite
twinned on {110}, upon marl
Misburg, Hannover, Germany
Muskovite, José Pinto Mine, Brazil
rosette-shaped aggregate of tabular crystals
José Pinto Mine, Minas Gerais, Brazil
Pyrargyrite Pyrargyrite
crystals upon native arsenic
St. Andreasberg, Harz mountains, Germany
Pyrite twin Pyrite
penetration twin on {110} 
Cantiere Bacino, Rio Marina,Elba, Italien
diameter of the twin: 14.5 cm (!)
Pyrite, striated cubes, Peru
typically striated cubes
Huanzala, Peru
cubes up to 5,5 cm
Pyromorphite Pyromorphite 
green crystals up to 3.5 cm
Bad Ems on the  Lahn, Germany
Söhngeite Söhngeite
crystal aggregates upon Germanite ore
Tsumeb, Otavi mountain area, Namibia
Tourmaline Tourmaline
polished plate perpendicular to the c-axis of a zoned crystal
Anjanabonoina, Madagascar
diameter: 13.5 cm
crystal upon white feldspar
Seiland, Alta, Norway
crystal height 5 cm

last version: oct 2009 Her