Difference between revisions of "Simple crystal structures of especial interest"
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* [[Marcasite structure]] – (ortorhombic with simple unit cell) – '''FeS<sub>2</sub> [https://en.wikipedia.org/wiki/Marcasite Marcasite]''' and '''FeP<sub>2</sub> Zuktamururite''' | * [[Marcasite structure]] – (ortorhombic with simple unit cell) – '''FeS<sub>2</sub> [https://en.wikipedia.org/wiki/Marcasite Marcasite]''' and '''FeP<sub>2</sub> Zuktamururite''' | ||
* [[Perovskite structure]] – (cubic or ortorhombic near cubic – simple unit cell) – '''CaTiO<sub>3</sub> – [https://en.wikipedia.org/wiki/Perovskite Perovskite]''' | * [[Perovskite structure]] – (cubic or ortorhombic near cubic – simple unit cell) – '''CaTiO<sub>3</sub> – [https://en.wikipedia.org/wiki/Perovskite Perovskite]''' | ||
| + | * [https://en.wikipedia.org/wiki/A15_phases A15_phases] – (cubic simple unit cell) – (also known as '''β-W''' or '''Cr<sub>3</sub>Si''' structure types) – quite covalent intermetallic compounds – Cr<sub>3</sub>Si, (Nb<sub>3</sub>Sn superconductor) – Are there any compounds in this group that do not contain scarce elements? <br> Related: [https://en.wikipedia.org/wiki/Weaire%E2%80%93Phelan_structure Weaire–Phelan structure] [https://www.thingiverse.com/thing:2390586 (3D printable tiles)] | ||
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* [[Pyrite structure]] – '''FeS<sub>2</sub> pyrite''', '''NiS<sub>2</sub> vaesite''', MnS<sub>2</sub> hauerite | * [[Pyrite structure]] – '''FeS<sub>2</sub> pyrite''', '''NiS<sub>2</sub> vaesite''', MnS<sub>2</sub> hauerite | ||
Revision as of 16:20, 4 July 2021
- Zincblende structure - zincblende ZnS, cubic moissanite SiC, diamond CC, silicon, gernamium, (α-tin aka grey tin SnSn), BN, AlN, ...
- Wurtzite structure - wurtzite ZnS, hexagonal moissanie SiC, lonsdaleite CC (hexagonal diamond), ... (same as above)
- See: Diamond like compounds
- Rock salt structure – simple cubic – (NaCl rocksalt, MgO periclase, TiO hongquiite, FeO wüstite, NiO bunsenite, ...) - See: Transition metal monoxides
- Rutile structure – (tetragnal with simple unit cell) – Rutile TiO2, Stishovite SiO2, ...
- Hematite structure – (hexahonal) – Leukosapphire Al2O3, Tistarite Ti2O3, and Hematite Fe2O3
- Marcasite structure – (ortorhombic with simple unit cell) – FeS2 Marcasite and FeP2 Zuktamururite
- Perovskite structure – (cubic or ortorhombic near cubic – simple unit cell) – CaTiO3 – Perovskite
- A15_phases – (cubic simple unit cell) – (also known as β-W or Cr3Si structure types) – quite covalent intermetallic compounds – Cr3Si, (Nb3Sn superconductor) – Are there any compounds in this group that do not contain scarce elements?
Related: Weaire–Phelan structure (3D printable tiles)
- Pyrite structure – FeS2 pyrite, NiS2 vaesite, MnS2 hauerite
- Quartz structure
Cubic but very big unit cell
- Spinel structure – 3D structure (mineralienatlas)
- Garnet structure – 3D structure (mineralienatlas)
- Bixbyte structure – 3D structure (mineralienatlas)
Special cases (related to concrete):
- Compound: Dodecacalcium_hepta-aluminate
- Mineral: Chlormayenite
Side-notes
The 3D voroni cells around the atoms can be used to gain sets of space-filling
polyhedral shapes for polyhedral microcomponents on a much larger scale.
(It's not Wiegner Seiz cells, this would bbe arround lattice points rather than atoms)
Related
- Structural type
- Base materials with high potential
- Gemstone-like compounds
- Neo-polymorph
- Pseudo phase diagram
- Good websites about compounds and minerals
External links
Wikipedia:
- Strukturbericht_designation
- Category:Crystal_structure_types
- Zincblende structure
- Wurtzite crystal structure
- A15 phases – (are there some that do not contain super rare elements?)
- => Weaire–Phelan structure
- Weaire–Phelan building blocks by mechadense
- A15 coordinates
- List of space groups (230)
