Explore Mineral
| Name: | Montmorillonite Mnt |
| Specimens in Collection: |  #41: Quartz / Montmorillonite Himalaya Mine, San Diego County, California, USA |
| IMA Chemistry: | (Na,Ca)0.3(Al,Mg)2Si4O10(OH)2·nH2O |
| Chemistry Elements: | The mineral Montmorillonite contains elements: Sodium (Na) Calcium (Ca) Aluminum (Al) Magnesium (Mg) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | France |
| Year First Published: | 1847 |
| IMA Status: | Approved,Grandfathered |
| Status Notes: | Originally named montmorillonniste: Mauduyt L (1847) Un mot sur un morceau de quartz d'une variété particulière, ainsi que sur une substance minérale trouvée dans le département de la Vienne, Bulletin de la Société Géologique de France 4, 168-170 |
| Structural Group Name: | Clay, Smectite-vermiculite |
| Fleischer's Group Name: | smectite |
| Crystal Systems: | monoclinic|unknown, triclinic |
| Oldest Known Age: | 4567.61 Million Years Ago |
| More Info: | Search Wikipedia: Montmorillonite (Wiki) Search Mindat: Montmorillonite Search Web Mineral DB: Montmorillonite |
Data appearing on this page is derived from the IMA Database of Mineral Properties. Not all properties are applicable to or available for all minerals.