Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite. Its a battle of unexpected chemical compositions where bournonite has four elements and vesuvianite has (almost) all the rest.
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Amphibole Supergroup from
U.S 40 Roadcut, Catoctin Mountain, Myersville, Frederick County, Maryland, USA


Locality type:Road Cutting
Classification
Species:'Amphibole Supergroup' (not an IMA approved species)
Formula:AB2C5(T8O22)W2
Comments:Actinolite-Tremolite (var. byssolite) in quartz veins and massive, is rather attractive in the veins.
Habit:fibrous
Colour:green
Abundance at site:Very common
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amphibole Supergroup data
Locality Data:Click here to view U.S 40 Roadcut, Catoctin Mountain, Myersville, Frederick County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:986198
Long-form Identifier:1:3:986198:5
GUID (UUID V4):0
Nearest other occurrences of Amphibole Supergroup
43.1km (26.8 miles) ⓘOld Goose Creek Quarry, Leesburg, Loudoun County, Virginia, USA
47.6km (29.6 miles) ⓘMonroe prospect, Eldersburg, Carroll County, Maryland, USA
49.2km (30.6 miles) ⓘMineral Hill Mine, Louisville, Carroll County, Maryland, USA
59.0km (36.7 miles) ⓘVirginia Crushed Stone Quarry, Loudoun County, Virginia, USA
63.0km (39.2 miles) ⓘNorthern pit, Hollofield Gabbro Quarries, Hollofield, Baltimore County, Maryland, USA
64.0km (39.8 miles) ⓘPatapsco Glen Construction Site, Woodlawn, Baltimore County, Maryland, USA
66.3km (41.2 miles) ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA
67.3km (41.8 miles) ⓘHighway 50 intersection, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
68.7km (42.7 miles) ⓘCentreville, Culpeper Basin, Fairfax County, Virginia, USA
70.0km (43.5 miles) ⓘMcMahon Quarry (Greenspring Quarry), Pikesville, Baltimore County, Maryland, USA
References
Matthew Neuzil
 
and/or  
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