3.5 billion years old komatiites:
From: Barberton, South Africa
Size: 12 cm

2.7 billion years old Archean komatiites with spinfex texture:
From: Belingwe, Zimbabwe, Africa
Size: 11 cm

2.7 billion years old Archean komatiites with
spinfex texture:
From: Belingwe, Zimbabwe, Africa
Size: 11 cm

Microphotograph of spinifex texture in Komatiite, viewed under a polarizing microscope.