Graphite: Valentine Mine
(#4 Quarry, Gouverneur Talc Company)

Harrisville, Lewis County, New York

1.7mm graphite crystal with a {11-21} twin
and surface steps, on blue calcite.
John A. Jaszczak collection #1491c and photo.

1.2mm graphite crystal showing growth spirals.
Etched from gray-white calcite.
Note that the step edges are rotated 30 degress
from the prism/pinacoid face edges.
Click here
to compare with other graphite spirals.
John A. Jaszczak collection #1744a and photo.

0.2mm graphite sphere with wollastonite,
etched from gray-white calcite.
John A. Jaszczak collection #1743a and photo.

Dr. R. Peter Richards is greatfully acknowledged for supplying bulk material from which these specimens were obtained.

References:

GERDES, M. L. and VALLEY, J. W. (1994) Fluid flow and mass transport at the Valentine wollastonite deposit, Adirondack Mountains, New York State. Journal of Metamorphic Geology, 12, 589-608.

CHAMBERLAIN, S. C., KING, V. T., COOKE, D., ROBINSON, G. W. and HOLT, W. (1999) Minerals of the Gouverneur Talc Company #4 Quarry (Valentine deposit), Town of Diana, Lewis County, New York. Rocks and Minerals 74, 236-249.

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