Tungsten Disulfide flakes
Image: <a href="//commons.wikimedia.org/w/index.php?title=User:Komarados&action=edit&redlink=1" class="new" title="User:Komarados (page does not exist)">Stanislav Leesment</a> (CC BY 4.0)
Mineral NameTungsten Disulfide flakes
Chemical FormulaW2S
Mohs HardnessNot applicable (nanoscale synthetic material)
Crystal Systemhexagonal
Streak ColorNot observable (AFM image); dark gray to black (for bulk WS2)
CleavagePerfect basal (for bulk WS2)
FractureNot applicable (nanoscale synthetic material)
Specific GravityNot applicable (nanoscale synthetic material)
ColorsArtificially colored in image, dark gray, black
TransparencyNot observable (AFM image); opaque (for bulk WS2)
Type LocalitySynthetic (laboratory grown)
Mineral GroupSulfide (synthetic material)
Usessolid lubricant, catalyst, 2D materials research
Associated MineralsEpitaxial Graphene Oxide (substrate)
Description
The image displays an artificially colored AFM topography showing angular, somewhat star-shaped flakes of W2S grown on a textured background. The central flake exhibits distinct layered growth steps, indicative of its crystalline structure.
Geological Context
This material is synthetically grown in a controlled laboratory environment, typically via chemical vapor deposition, and does not form through natural geological processes.
