The Mineral marialite
Marialite is the sodium-rich end member of the Scapolite
series. It is very similar and often indistinguishable from
Meionite, the other end member of the series. Intermediary
forms of Marialite and Meionite are frequent, and these are classified
simply as Scapolite. Marialite is named after Maria Rosa von Rath, the wife of German mineralogist Gerhard von Rath (1830-1888).
White, gray, colorless, cream, yellow, bluish-gray, and purple. Less commonly blue, brown, green, red, and pink.
5.5 - 6
Transparent to opaque
2.5 - 2.6
Vitreous to dull
|Other ID Marks
Often fluorescent, sometimes brightly. Colors include white, yellow,
and pink. Fluorescence may be present both in shortwave and
The two Scapolite members often occur together and are not usually individually
distinguished. See Scapolite for a comprehensive list of localities general to the Scapolite series.
Common Mineral Associations
Diopside, Calcite, Biotite, Phlogopite, Titanite, Hornblende, Actinolite, Tremolite, Almandine, Microcline, Albite, Muscovite
Distingushing Similar Minerals
Meionite - Difficult to distinguish without chemical analysis.
Feldspars - Often form in different crystal habits, lacks fluorescence.
Nepheline - Different cleavage, lacks fluorescence.