This table contains x-ray crystallographic data on about 400 common minerals, as well as selected crystalline elements. Column definitions for the table are as follows.
Column heading | Definition |
Name | Common name of the mineral, arranged alphabetically |
Formula | Chemical formula for a typical sample of the mineral; composition often varies considerably with the origin of the sample |
CAS Reg. No. | Chemical Abstracts Service Registry Number |
Crystal system | Crystal system of the mineral |
Structure type | Prototype for the structural arrangement of the crystallographic cell |
Z | Number of formula units per unit cell |
a | Length of the a cell edge, in Å (1 Å = 10-8 cm) |
b | Length of the b cell edge, in Å (1 Å = 10-8 cm) |
c | Length of the c cell edge, in Å (1 Å = 10-8 cm) |
α | α angle between cell axes, in degrees |
β | β angle between cell axes, in degrees |
γ | γ angle between cell axes, in degrees |
V | Volume of unit cel,l in Å3 |
Name | Mol. form. | CAS Reg. No. | Crystal system | Structure type | Z | a/Å | b/Å | c/Å | α/° | β/° | γ/° | V/Å3 |
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Acanthite | Ag2S | 12068-32-5 | monoclinic | 4 | 4.228 | 6.928 | 7.862 | 99.58 | 227.08 | |||
Acmite | NaFe(SiO3)2 | 14567-85-2 | monoclinic | diopside | 4 | 9.658 | 8.795 | 5.294 | 107.42 | 429.06 | ||
Akermanite | Ca2MgSi2O7 | 14567-90-9 | tetragonal | melilite | 2 | 7.8435 | 5.010 | 308.22 | ||||
Alabandite | MnS | 1318-06-5 | cubic | rock salt | 4 | 5.223 | 142.51 | |||||
Almandine | Fe3Al2Si3O12 | 1302-62-1 | cubic | garnet | 8 | 11.526 | 1531.21 | |||||
Altaite | PbTe | 12037-86-4 | cubic | rock salt | 4 | 6.4606 | 269.66 | |||||
Aluminum | Al | 7429-90-5 | cubic | copper | 4 | 4.049 | 66.38 | |||||
Alunite | KAl3(SO4)2(OH)6 | 1302-91-6 | rhombohedral | 3 | 6.982 | 17.32 | 731.2 | |||||
Analcite | NaAl(SiO3)2·H2O | 1318-10-1 | cubic | 16 | 13.733 | 2589.98 | ||||||
Anatase | TiO2 | 1317-70-0 | tetragonal | 4 | 3.785 | 9.514 | 136.30 | |||||
Andalusite | Al2OSiO4 | orthorhombic | 4 | 7.7959 | 7.8983 | 5.5583 | 342.25 | |||||
Andradite | Ca3Fe2Si3O12 | 15078-96-3 | cubic | garnet | 8 | 12.048 | 1748.82 | |||||
Anglesite | PbSO4 | 14594-79-7 | orthorhombic | barite | 4 | 8.480 | 5.398 | 6.958 | 318.50 | |||
Anhydrite | CaSO4 | 14798-04-0 | orthorhombic | anhydrite | 4 | 6.991 | 6.996 | 6.238 | 305.09 | |||
Annite | KFe3[AlSi3O10](OH)2 | monoclinic | 1M mica | 2 | 10.29 | 9.33 | 5.39 | 105.1 | 512.40 | |||
Anorthite | CaAl2Si2O8 | 1302-54-1 | triclinic | primitive cell | 8 | 8.177 | 12.877 | 14.169 | 93.17 | 115.85 | 91.22 | 1338.9 |
Anthophyllite | Mg7Si8O22(OH)2 | orthorhombic | 4 | 18.61 | 18.01 | 5.24 | 1756.3 | |||||
Antimony | Sb | 7440-36-0 | rhombohedral | arsenic | 6 | 4.2996 | 11.2516 | 181.45 | ||||
Aragonite | CaCO3 | 14791-73-2 | orthorhombic | aragonite | 4 | 5.741 | 7.968 | 4.959 | 226.85 |