Graphite Spirals; Valentine Property, Harrisville, New York

Colors are due to interference effects from Nomarski differential interference contrast imaging.
Click on the images to see larger TIFF images.

1.2 mm graphite crystal with spiral growth steps; etched from calcite.
Nomarski differential interference contrast imaging.
Valentine deposit, Harrisville, NY
John A. Jaszczak collection 1744a and photo 91-17.

Close ups of above. Nomarski DIC imaging.
John A. Jaszczak collection 1744a and photos 91-20 91-23.

Close up of above. Nomarski DIC imaging.
John A. Jaszczak collection 1744a and photo 91-26.

Back to Jaszczak's home page
Back to Graphite Page