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Copper aluminium (11.8%) annealed and etche

Copper aluminium (11.8%) annealed and etche
2 9 c m
actual image size: 32cm x 21cm


Copper aluminium (11.8%) annealed and etched. Light micrograph under crosed polars with first order red compensator. Magnification 250x.

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© Brian & Mavis Bousfield / Science & Society

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