Savio railway tunnel, Vantaa, Uusimaa, Finland
Ca- and Mn-rich almandines (EDS, XRF) in quartz.
Ca- and Mn-rich almandines in quartz. (XRF and EDS). Size 30 x 25 x 10 mm. Collected 2006.
Almandine crystals in quartz vein. Massive garnet matrix. Size of specimen 65 x 40 x 25 mm. Field collected.
© Jyrki Autio
17 mm garnet on top of larger broken crystal. Field collected.
Garnets with somewhat unusual crystal form.
Calcite preserved inside of garnet. Identified by Raman spectroscopy (Joel Dyer 2017) and hardness. Interestingly calcite is not found in visual quantitiess elsewhere in these garnet-bearing rocks.