chipdatajeffb
Brownfield_6250
Closeup of one of Steve Schoner's thin sections, showing the rich variety of chondrules in this one small portion of the meteorite from Brownfield, Texas.
Photo made using a petrographic microscope and Pentax istDS DSLR. The microscope has cross polarizers in place.
I'll have to do a better scale measurement later, but I think the smallest features here are about 1/20th mm.
Full view of thin section at about 1:1 macro scale is here:
Brownfield_6250
Closeup of one of Steve Schoner's thin sections, showing the rich variety of chondrules in this one small portion of the meteorite from Brownfield, Texas.
Photo made using a petrographic microscope and Pentax istDS DSLR. The microscope has cross polarizers in place.
I'll have to do a better scale measurement later, but I think the smallest features here are about 1/20th mm.
Full view of thin section at about 1:1 macro scale is here: