Suzaki mine, Shimoda City, Shizuoka Prefecture, Japan
Massive pyrite ore, with small pyrite crystals in cavities. The pyrite is intergrown with gray chert. Field of view 7cm. Found December 2010.
© Amir Akhavan
Octahedral pyrite crystals in a cavity of massive pyrite/chert rock. Field of view 4mm. Found December 2010.
Alfredo Petrov at one of the old Suzaki mine adits, now mostly occluded by metal bars and sandbags, December 2012.
© Michel Meder