Sphaerolith:
Artigas (Uruguay)
Sphaerolith:
Burenzogt (Mongolia)
Sphaerolith:
Brazil
Sphaerolith:
Brazil
Sphaerolith:
Sumatra
Sphaerolith:
Sumatra
Sphaerolith:
Sumatra
Sphaerolith:
East Timor (Indonesia)
Sphaerolith:
South Africa - Christmas present 2013 from Anton "avegaon"! :-)