A few small pieces of matrix were cut from Arkona (Hungry Hollow) slabs obtained from Bob O'Donnell.
This is the first thin section from the small pieces of matrix.
The small pieces (20mm x 25mm) were mounted on petrographic slides and ground and polished to approximately 50 µ.
Photo one shows the matrix before it was mounted on the glass slide.
Photo two is the thin section slide made from the small piece at 1.6x mag.
Photo three is the object at the bottom of the slide at 10x and full wave plate.