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Fassaite from
Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA

Locality type:Quarry
Classification
Species:Augite var: Fassaite
Formula:(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Comments:"A striking brown clinopyroxene, with a silky luster, collected at the Strickland quarry, gives an X-ray pattern closer to fassaite than diopside or augite. As learned from similar material, at the railroad cut two miles west, the surficial alteration is a smectite, corroborating the aluminum content. Fassaite also accompanies zoisite, quite abundantly, at ledges immediately west of the Strickland quarry." Schooner (circa 1985).
Habit:massive granular
Colour:brown
Quality for species:Rock forming mineral/non-crystalline/little interest for collectors.(##)
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
References
References:Schooner, Richard. (circa 1985), Untitled manuscript on central Connecticut mineralogy.
Data
Mineral Data:Click here to view Fassaite data
Locality Data:Click here to view Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Fassaite
70.0km (43.5 miles) Weston meteorite (incl Easton; Trumbull; Fairfield), Weston, Fairfield County, Connecticut, USA
 
Mineral and/or Locality  
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