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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Arsenolite from
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Arsenolite
Formula:As2O3
Comments:Schooner (1955): "as yellowish powdery incrustations on decomposed arsenopyrite at the Strickland Quarry. One rather large mass of the unusual material was taken out of the pegmatite which adjoins the schist in the cut above the main pit. Pyrite is associated, in all the specimens."
Habit:powder
Colour:yellowish
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Arsenolite data
Locality Data:Click here to view Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:96183
Long-form Identifier:1:3:96183:5
GUID (UUID V4):0
Nearest other occurrences of Arsenolite
3.8km (2.3 miles) ⓘState Forest Quarry No. 2, Cobalt, East Hampton, Middlesex County, Connecticut, USA
3.8km (2.4 miles) ⓘGreat Hill cobalt mines, Cobalt, East Hampton, Middlesex County, Connecticut, USA
4.2km (2.6 miles) ⓘState Farm Quarry (Road Metal Quarry), Middletown, Middlesex County, Connecticut, USA
47.5km (29.5 miles) ⓘArsenic and nickel mine (Nickel Mine Brook), Seymour, New Haven County, Connecticut, USA
References
Schooner, Richard (1955) 90 Minerals from 1 Connecticut Hill. Rocks & Minerals, 30 (7-8). 351-358 doi:10.1080/00357529.1955.11767837
 
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