About the sample
The chemical element carbon appears in several allotropic modifications. Among these are: diamond, graphite, amorphous carbon, fullerenes etc. The first three are found in the nature. From all of these, diamonds and graphite samples are exhibited in the collection. The diamond samples are glued on improvised stand made of paper clip. They were removed from a saw for cutting marble.
The black sample is graphite. It is native sample found in Sasa mine. Sasa is an underground zinc and lead mine that process approximately 820,000 tons of ore annually. This mine is located near the village Sasa in the municipality of Makedonska Kamenica. Since 2017, Central Asia Metals is the owner of the Sasa mine.
These samples have been donated by our colleagues Gligor Jovanovski and Petre Makreski.
ρ / g/cm32.27
tt, mp / °C3500
tv, bp / °C4027
Electronegativity, (X)2.55
Crystal structureHexagonal (graphite), Cubic (diamond) …
Extended informationhttps://www.webelements.com/carbon/