Al4H4O16Si4
Kaolinite · China clay, Kaolin
Kaolinite is a layered silicate clay mineral that forms through the chemical weathering of aluminum silicate minerals. It is widely valued for its fine particle size, white color, and chemical stability, making it a primary raw material in various industrial manufacturing processes.

Key Properties
Cross-validated computational properties for Kaolinite, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Reported Structures
Lowest-energy structures reported for Al4H4O16Si4, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P21/c (No. 14) | monoclinic | 5.57 | 0.0903 | -7.451 | 3.59 |
| No. 0 | unknown | — | — | — | 0.94 |
| P21/c (No. 14) | — | — | — | — | — |
Applications
Where Kaolinite is used.
Frequently Asked Questions
Common questions about Kaolinite, answered from cross-validated data.
What is Al4H4O16Si4?
Kaolinite is a layered silicate clay mineral that forms through the chemical weathering of aluminum silicate minerals. It is widely valued for its fine particle size, white color, and chemical stability, making it a primary raw material in various industrial manufacturing processes.
What is Al4H4O16Si4 used for?
What is the band gap of Al4H4O16Si4?
Is Al4H4O16Si4 a metal, semiconductor, or insulator?
Is Al4H4O16Si4 thermodynamically stable?
What is the crystal structure of Al4H4O16Si4?
What is the density of Al4H4O16Si4?
How many polymorphs of Al4H4O16Si4 are known?
What elements does Al4H4O16Si4 contain?
Where does the data for Al4H4O16Si4 come from?
Related Compounds
Other Aluminosilicates and Zeolite Frameworks in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
- aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
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