Simple crystal structures of especial interest
From apm
- Zincblende structure - zincblende ZnS, cubic moissanite SiC, diamond CC, silicon, gernamium, (α-tin aka grey tin SnSn), ...
- Wurtzite structure - wurtzite ZnS, hexagonal moissanie SiC, lonsdaleite CC (hexagonal diamond), ... (same as above)
- Rutile structure - Rutile TiO2, Stishovite SiO2, ...
- Corundum structure - Leukosapphire Al2O3, Tistarite Ti2O3,
- Rock salt structure - (NaCl) - See: Transition metal monoxides
- Quartz structure
- Pyrite structure
Marcasite structure:
- FeS2 Marcasite – Mohs 6.0-6.5 – compadred to pyrite: less chemically stable, smaller unit cell, lower crystal structure symmetry
- FeSe2 Ferroselite – Mohs 6.0-6.5 – Fe substitutable by Ni (Kullerudit), Cu (Petříčekit)
- FeTe2 Frohbergit – Fe substitutable by Co (Mattagamit)
Marcasite structure (other group):
- FeP2 Zuktamururite – Mohs ??
- FeAs2 Loellingite – Mohs 5.0-5.5 – 7.1-7.5g/ccm
- Rammelsbergite (NiAs2) – had two polymorps: (Krutovit cubic) (Pararammelsbergit – orthorhombic)
- Safflorit (CoAs2), Omeiite (OsAs2), Anduoite (RuAs2)
- Nisbit (NiSb2)
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
- 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
