Title | Graphite |
Description | Graphite is most commonly a minor disseminated mineral in metamorphic rocks. Massive samples like this one (9 cm across) come from vein deposits. Graphite is pure carbon and is a polymorph of diamond. The two share the same chemistry but have very different structures and very different properties. Graphite can be used for the lead in pencils, as a toughener of steel, and as a lubricant. |
Location | Sri Lanka. Columbo Mine. |
Photographer | Darla Sondrol. 2001-06-27. |
Collection | University of North Dakota Mineralogy Collection #49. |
Key words | graphite, carbon, Sri Lanka |
Tech details | 627 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens. |
GeoDIL number | 913 |
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