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
Blue Mount Quarry, Blue Mount, Baltimore County, Maryland, 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 Blue Mount Quarry, Blue Mount, Baltimore County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:49655
Long-form Identifier:1:3:49655:3
GUID (UUID V4):0
Nearest other occurrences of Brucite
15.0km (9.3 miles) ⓘReed Mine, Jarretsville-Dublin Mining District, Harford County, Maryland, USA
27.8km (17.3 miles) ⓘChoate Mine, Owings Mills, Baltimore County, Maryland, USA
41.3km (25.7 miles) ⓘLine pit (Lowe's Mine), Cecil County, Maryland, USA
41.3km (25.7 miles) ⓘLine pit (Lowe's Chromite Mine), Fulton Township, Lancaster County, Pennsylvania, USA
43.4km (27.0 miles) ⓘHaines & Kibblehouse Penn-Maryland Materials Quarry, Fulton Township, Lancaster County, Pennsylvania, USA
44.3km (27.5 miles) ⓘGeiger Quarry, Little Britain Township, Lancaster County, Pennsylvania, USA
44.3km (27.6 miles) ⓘCedar Hill Quarry (Stoltzfuss Quarry), Fulton Township, Lancaster County, Pennsylvania, USA
47.0km (29.2 miles) ⓘWood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA
75.8km (47.1 miles) ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA
78.0km (48.5 miles) ⓘHunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
References
Rocks & Min.:12:247.
 
and/or  
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