7 photos

Here are some of the best from 595 A, i.e. near center of sample.

The "dust" should be very obvious here in most of the photos -- it surrounds either small or large clumps of fine-grained ice.

When the sample is first put in the SEM, the entire surface looks almost uniform, with only some of the dust being obvious. This is what the very first picture (595A1) is here -- an overview showing reasonably uniform surface appearance.

This is also when the grain boundaries in the ice are extremely easy to see, as shown in the next couple of photos (595A35sm and 595A33).

Photo 595A38 is probably the best shot in the series, showing both the ice boundaries as well as the dust particles surrounding various-sized clumps of ice.

Quite rapidly, however, the ice sublimates and makes the sample look extremely dust-rich (595A4, 595A7, 595A8). It's pretty cool how fast this happens (over, say, an hour or so) and makes the overall size of the ice clumps very easy to distinguish. The compression direction is NW-SE, and the center of the sample is near the top left corner of the photos. This is shown in the last three pictures here, all taken at different magnifications.

I have more photos, but that's the story. The size of the clumps of ice really varies, similar to what was exhibited in previous samples. But the grain boundaries within the clumps is much clearer than I've ever seen before.

595A1

595A33

595A35sm

595A38