MARIALITE

Marialite, a sodium calcium aluminum silicate-chloride mineral of the scapolite group, is known from Franklin, but has not been reported from Sterling Hill. Marialite occurs in one known specimen as a light yellow 2-3 cm-thick vein of massive material, bordered by mica and graphite, and crosscutting massive calcite from the Franklin Marble. It is visually indistinguishable from common meionite, and its mottled yellow fluorescence in ultraviolet is not useful in species determination. The one known specimen has 62 mole % marialite. (Dunn, 1995)

Location Found:

Franklin

Year Discovered:

1866

Formula:

Na₄Al₃Si₉O₂₄Cl

Essential Elements:

Aluminum, Chlorine, Oxygen, Silicon, Sodium

All Elements in Formula:

Aluminum, Chlorine, Oxygen, Silicon, Sodium

IMA Status:

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"

Fluorescent Mineral Properties

Shortwave UV light:

Orange, moderate brightness

Longwave UV light:

Pink

To find out more about this mineral at minDat's website, follow this link Marialite

References:

Dunn, Pete J. (1995). Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits. Franklin, NJ.: The Franklin-Ogdensburg Mineralogical Society. p.512

The Picking Table References

	PT Issue and Page	Description / Comment
View Issue	V. 58, No. 1 - Spring 2017, pg. 13	Fluorescent Minerals of Franklin and Sterling Hill, N.J., Part 2, Richard C. Bostwick - Marialite
View Issue	V. 33, No. 2 - Fall 1992, pg. 11	The Check List of Franklin-Sterling Hill Fluorescent Minerals - Marialite (Fluorescent Info)
View Issue	V. 31, No. 2 - Fall 1990, pg. 3	Notes from the Laboratory & Changes to the List of Species From Franklin and Sterling Hill, Pete J. Dunn, John L. Baum, Marialite

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