| Name: | Laumontite Lmt |
| Specimens in Collection: |  #589: Quartz var. Amethyst / Laumontite Piedra Parada, Veracruz, Mexico |
| IMA Chemistry: | CaAl2Si4O12·4H2O |
| Chemistry Elements: | The mineral Laumontite contains elements: Calcium (Ca) Aluminum (Al) Silicon (Si) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | France |
| Year First Published: | 1805 |
| IMA Status: | Approved |
| Status Notes: | Originally named lomonite by Werner: Jameson R (1805) Lomonite, System of Mineralogy II, Bell and Bradfute (Edinburgh, U.K.) 539-540 Renamed laumonite: Haüy R J (1809) Laumonite, in Tableau Comparatif des Résultats de Cristallographie et de l'Analyse Chimique Relativement á la Classification des Minéraux, Courcier (Paris, France) 195-196 Renamed laumontite: von Leonhard K C (1821) Laumontit, in Handbuch der Oryktognosie, Mohr and Winter (Heidelberg, Germany) 448-449 |
| Structural Group Name: | Not in a structural group |
| Fleischer's Group Name: | zeolite |
| Crystal Systems: | monoclinic |
| Oldest Known Age: | 2906 Million Years Ago |
| Mohs Hardness: | 4.0 |
| More Info: | Search Wikipedia: Laumontite (Wiki) Search Mindat: Laumontite Search Web Mineral DB: Laumontite |