| 1 | ELEMENTOS (Metales and aleacciones intermetálicas; metaloides and no metales; carbures, siliciuros, nitruros, fosfuros) | 
| 2 | SULFUROS y SULFOSALES (sulfuros, selenuros, teleruros; arseniuros, antimoniuros, bismutidos; sulfoarsenitos, sulfoantimonitos, sulfbismutitos, etc.) | 
| 3 | HALUROS | 
| 4 | OXIDOS (Hydroxides, V[5,6] vanadatos, arsenitos, antimonitos, bismuthitos, sulfitos, selenitos, telluritos, iodatos) | 
| 5 | CARBONATOS (NITRATOS) | 
| 6 | BORATOS | 
| 7 | SULFATOS (selenatos, teluratos, cromatos, molibdatos, wolframatos) | 
| 8 | FOSPHATOS, ARSENATES, VANADATES | 
| 9 | SILICATOS (Germanatos) | 
| 10 | COMPUESTOS ORGÁNICOS | 
This classification is based on the Nickel-Strunz 9th Edition (2001), expanded on by Jim Ferraiolo and others, and now extended and maintained by mindat.org
| 10.A | Salts of organic acids | 
| 10.B | Hydrocarbons | 
| 10.C | Miscellaneous Organic Minerals | 
10.A Salts of organic acids
| 10.AA | Formates, Acetates, etc. | 
| 10.AB | Oxalates | 
| 10.AC | Benzine Salts | 
| 10.AD | Cyanates | 
10.AB Oxalates
10.AB WHEWELLITA Ca(C2O4) · H2O
10.BA Hydrocarbons
| 10.BA | Hydrocarbons | 
10.C Miscellaneous Organic Minerals
10.CA Miscellaneous Organic Minerals
10.CA.20 ABELSONITA Ni(C31H32N4)