Naturally Graphite
suppliers of natural graphite samples and
substrates for research and industry
 
line decor
  
line decor
 
 
 
 

 
 
GALLERY

Hillocks

Graphite Hillocks  
Graphite Hillocks  
Graphite Hillocks  
Graphite Hillocks  
Graphite Hillocks  

Graphite Spirals

Graphite Spirals
1.2 mm graphite crystal showing growth spirals. Etched from gray-white calcite. Note that the step edges are rotated 30 degrees from the prism/pinacoid face edges. Harrisville, Lewis County, New York.
Graphite Spirals
Remarkable hexagonal crystal with well defined spiral showing a transition from rounded steps near the center to polygonalized nearer the crystal’s edges. John Rakovan collection and photo, Namib Grube, Wlotzkas Baken, Namibia.
Graphite Spirals
Growth spiral on a 1 mm graphite crystal in calcite. Crestmore quarry, Riverside County, California.
Graphite Spirals
Remarkable spirals on 2 mm crystal. Namib Grube, Wlotzkas Baken, Namibia.

Twinned

Twinned Graphite
1.7 mm graphite crystal with a {11-21} twin and surface steps, on blue calcite. Harrisville, Lewis County, New York.
Twinned Graphite
1 mm tabular graphite crystal with modifying pyramid faces, twinned on {11-21}, in calcite. Crestmore quarry, Riverside County, California.

Overgrowth

Graphite Overgrowth
1.2 mm sample with a thick secondary overgrowth of graphite. The crystal is on partially etched calcite and is associated with orange phlogopite that is included with tiny graphite spheres, and an unidentified pale green mineral at the mid-lower right. Lime Crest quarry near Sparta, Sussex County, New Jersey.
Graphite Overgrowth
SEM photo of graphite crystals (to approximately 0.2 mm) showing a secondary overgrowth of graphite crystals as minute plates. Associated are a spray of arsenopyrite crystals at the lower right and a plate of pyrrhotite at the lower left. Lime Crest quarry near Sparta, Sussex County, New Jersey.
Graphite Overgrowth
Section of a 2 mm tabular graphite crystal with a second-generation graphite overgrowth, etched from calcite. Treadway quarry, Port Henry, New York.
Graphite Overgrowth
Close-up of the secondary graphite overgrowth. Treadway quarry, Port Henry, New York.

 

Tabular

Tabular Graphite
1 mm sharp tabular graphite crystal with green diopside in calcite. Crestmore quarry, Riverside County, California.
Tabular Graphite
Growth spirals on tabular graphite crystals in calcite. Both crystals are 2 mm across and occurred within 5 mm of each other. Trotter Mine dump, Franklin, New Jersey.
Tabular Graphite  

Spheroidal

Spheroidal Graphite
Cluster of graphite spheres (up to 0.4 mm) on orange-brown phlogopite, partially etched from calcite. Lime Crest quarry near Sparta, Sussex County, New Jersey.
Spheroidal Graphite
Spheroidal Graphite in Gabbro. Oshirabetsu mine, Hiroo, Hokkaido, Japan.

Snowflake

Snowflake Graphite
The snowflake graphites are a very rare surface morphology that appear to have arisen from a later generation of graphite grown in a dendrite pattern on an earlier grown hexagonal graphite crystal surface. The color images come from the interference of light in a optical microscopy technique called differential interference contrast, which is used to enhance surface topography. These unusual crystals occurred in a single sample of marble from a large quarry near Harrisville, New York.
Snowflake Graphite
More snowflake graphite. Harrisville, Lewis County, New York.

MORE

Columnar Graphite
1 mm columnar graphite crystal with trigonal symmetry. Umzimkulu quarry, KwaZulu/Natal, South Africa.
Graphite from Bauer Residues
Graphite crystal from Bauer residues donated to the Smithsonian (National Museum of Natural History). Sterling Hill, Sussex County, New Jersey.
Graphite Pseudo-Cube
SEM photo of a graphite pseudo-cube (nearly 0.1 mm) on phlogopite, partially etched from calcite. Individual graphite crystals in the aggregate seem to be partially aligned. Lime Crest quarry near Sparta, Sussex County, New Jersey.

 
 © 2008 Naturally Graphite