Taken while on a residency in Boulder, Colorado through the BMoCA in 2018. Using polarizing filters and light to explore the crystalline structures of ice cores drilled from Antarctica - some sections over 400,000 years old. With great thanks to the NSAICF
The coloured images are of sections shaved down to approximately 0.5mm thick, with the colours derived from the slightly alternating facade angles of the internal crystal structures.
The (mostly) black and white images are of thicker samples, with polarizing filters to highlight the larger crystals in the sample. This is almost invisible to the naked eye and had never been photographed in this way before.