microkrystites from the Eocene (Popigai strewnfield)

CPX spherules from the Late Eocene in the western Indian Ocean

ODP site 709C-31X-4-145-150 cm

(courtesy of F. T. Kyte)
click on the spherules in the image below to see an SEM secondary and backscatter electron image of that spherule

Fused microkrystites, SEM image. Note it is not a true dumbbell, created by spinning of a liquid droplet. A liquid droplet collided with an already crystallized, larger one. For details of the suture zone, look here

Suture Zone between two fused spherules

Fused droplets
detail of suture