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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Quartz from
Ben Murphy Mica Mine, Scaggsville, Howard County, Maryland, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Schorl1
Microcline1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Ben Murphy Mica Mine, Scaggsville, Howard County, Maryland, USA
Data Identifiers
Mindat Occurrence Record ID:202004
Long-form Identifier:1:3:202004:4
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.4km (0.2 miles) ⓘPatuxent River Bridge, Route 29, Scaggsville, Howard County, Maryland, USA
4.2km (2.6 miles) ⓘParlet Prospect, Simpsonville, Howard County, Maryland, USA
6.7km (4.2 miles) ⓘSavage Gabbro Quarry, Savage, Howard County, Maryland, USA
8.2km (5.1 miles) ⓘClarksville, Howard County, Maryland, USA
8.9km (5.5 miles) ⓘMuirkirk Pit (Maryland Clay Products), Prince Georges County, Maryland, USA
8.9km (5.6 miles) ⓘBrighton Dam Road Quarry (Howard-Montgomery Quarry), Howard County, Maryland, USA
10.1km (6.3 miles) ⓘColumbia area, Howard County, Maryland, USA
10.8km (6.7 miles) ⓘPaint Branch, White Oak, Montgomery County, Maryland, USA
11.1km (6.9 miles) ⓘWhite Oak, Montgomery County, Maryland, USA
12.1km (7.5 miles) ⓘKensington Mica Mine (Gilmore Mine; B. H. Warner Mine), Wheaton, Montgomery County, Maryland, USA
References
Mines of the Washington D.C Area
 
and/or  
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