Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Marialite from
Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA


01663340017364005396559.jpg
Marialite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
01663340017364005396559.jpg
Marialite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
03175750017272018842475.jpg
Marialite

Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
Locality type:Mine
Classification
Species:Marialite
Formula:Na4Al3Si9O24Cl
Comments:reported as a 5 cm. vein of grayish-white color; cleavage sections show a fibrous appearance
Habit:cleavable mass
Colour:white grayish-white, pale pink to lilac
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Marialite data
Locality Data:Click here to view Tilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:700280
Long-form Identifier:1:3:700280:9
GUID (UUID V4):0
Nearest other occurrences of Marialite
36.9km (22.9 miles) ⓘOld Mine Plaza construction site, Long Hill, Trumbull, Fairfield County, Connecticut, USA
37.1km (23.1 miles) ⓘCorporate Drive, Long Hill, Trumbull, Fairfield County, Connecticut, USA
37.3km (23.1 miles) ⓘOld Mine Park (Old Tungsten Mine), Long Hill, Trumbull, Fairfield County, Connecticut, USA
44.3km (27.5 miles) ⓘHogencamp Mine, Town of Tuxedo, Orange County, New York, USA
68.4km (42.5 miles) ⓘConklin Limestone Company quarry (Falls Village Quarry), Falls Village, Canaan, Litchfield County, Connecticut, USA
References
(Januzzi, 1966, 1989) (Trainer, 1940) (Nightingale 2001)
 
and/or  
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