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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Brucite from
Brinton's Quarry, Westtown Township, Chester County, Pennsylvania, USA


Locality type:Quarry
Classification
Species:Brucite
Formula:Mg(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Brucite data
Locality Data:Click here to view Brinton's Quarry, Westtown Township, Chester County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:406402
Long-form Identifier:1:3:406402:2
GUID (UUID V4):0
Nearest other occurrences of Brucite
15.9km (9.9 miles) ⓘBlue Hill, Media, Upper Providence Township, Delaware County, Pennsylvania, USA
48.3km (30.0 miles) ⓘWood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA
50.9km (31.6 miles) ⓘCedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster County, Pennsylvania, USA
50.9km (31.6 miles) ⓘGeiger Quarry, Little Britain Township, Lancaster County, Pennsylvania, USA
51.7km (32.1 miles) ⓘFritz Island Mines, Cumru Township, Berks County, Pennsylvania, USA
51.8km (32.2 miles) ⓘHaines & Kibblehouse Penn-Maryland Materials Quarry, Fulton Township, Lancaster County, Pennsylvania, USA
53.8km (33.4 miles) ⓘLine pit (Lowe's Mine), Cecil County, Maryland, USA
53.8km (33.4 miles) ⓘLine pit (Lowe's Chromite Mine), Fulton Township, Lancaster County, Pennsylvania, USA
58.0km (36.0 miles) ⓘSinking Spring, Berks County, Pennsylvania, USA
78.9km (49.1 miles) ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
References
Lapham, Davis M., Geyer, Alan R. (1965) Mineral Collecting in Pennsylvania. Bulletin G33 (2nd ed.). Pennsylvania Geological Surveyp.130
 
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