1. The identification of laumontite goes back to the early days of mineralogy. 2. Laumontite easily dehydrates when stored in a low humidity environment.3. Prehnite pseudomorphs after laumontite ( epimorphs ) have been found in India. 4. Minerals found in association with powellite include molybdenite, ferrimolybdite, stilbite, laumontite and apophyllite. 5. The dehydrated laumontite is very friable, often falling into a powder at the slightest touch. 6. Mineral assemblages include kaolinite and montmorillonite with laumontite , wairakite, prehnite, calcite and chlorite. 7. The term " leonhardite " bears his name, being defined as a partially dehydrated, opaque laumontite . 8. Excellent white bow ties of stilbite are found here on calcite and quartz, associated with heulandite and laumontite in cavities. 9. The mineral laumontite , which Laumont discovered in the mines of Huelgoat, was named after him by Ren?Just Ha�y. 10. The scolecite is commonly found alone or on stilbite and is covered with laumontite or colorless, pale green or white fluorapophyllite.
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