| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Mazarinades--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Mazzettiite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mazzite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mazzite-Mg | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mazzite-Na | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mbaya Indians | No definition provided | Christopher Rauch | 2023.12.01 |
| Mbobomkulite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mboziite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcallisterite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcalpineite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcauslanite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcbirneyite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcconnellite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mccrillisite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcgillite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcgovernite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mcguinnessite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| McHenry, Fort, Bombardment of | No definition provided | Christopher Rauch | 2023.12.01 |
| McIlwainCoordinateSystem | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mckelveyite (Nd) | No definition provided | Ryan McGranaghan | 2023.04.16 |