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Beaumontite (of Lévy)

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Colour:
Golden yellow, yellow ...
Hardness:
3½ - 4
Name:
Named in 1839 by M. Lévy in honor of Jean-Baptiste Elie de Beaumont [1798 - 1874], professor of geology at he the College de France. Beaumont co-authored the Geologic Map of France and was a researcher regarding the mechanics of mountain building. Beaumontite was re-investigated by Francis Alger in 1844 who discovered that the mineral was pseudo-orthorhombic and merely a crystallographic variant of heulandite.
A variety of Heulandite-Ca

Beaumontite differs from standard heulandite as a crystallographic variety with fewer crystal faces the result of which beumontite resembles an orthorhombic mineral with "right square prism". Most beaumontite, by coincidence, is generally golden yellow.

Classification of Beaumontite (of Lévy)

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First Recorded Occurrence of Beaumontite (of Lévy)

General Appearance of First Recorded Material:
Pseudo-orthorhombic equant golden yellow crystals with a pearly face.
Year of Discovery:
1839
Geological Setting of First Recorded Material:
Fissure mineralization between gneiss and granite schlieren
Associated Minerals at First Recorded Locality:

Physical Properties of Beaumontite (of Lévy)

Vitreous, Sub-Vitreous, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Golden yellow, yellow brown
Streak:
White
Hardness (Mohs):
3½ - 4
Tenacity:
Brittle
Cleavage:
Perfect
{001}
Fracture:
Step-Like
Density:
2.2 g/cm3 (Measured)    

Other Information

Not fluorescent in UV
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Beaumontite (of Lévy)

Reference List:
Levy, M. (1839) L'Institute (French Academy of Science), #313, p. 455.
Alger, Francis (1844) Beaumontite and Licolnite Identical with Heulandite, American Journal of Science, first series, v. 46 , p. 233-236.

Internet Links for Beaumontite (of Lévy)

Localities for Beaumontite (of Lévy)

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
USA (FRL)
 
  • Maryland
    • Baltimore City
M. Levy (1839)
Mineral and/or Locality  
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