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
Madison Lead Mine, Madison, Carroll County, New Hampshire, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Madison Lead Mine, Madison, Carroll County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:32102
Long-form Identifier:1:3:32102:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
10.8km (6.7 miles) ⓘBald Mountain, Ossipee, Carroll County, New Hampshire, USA
13.5km (8.4 miles) ⓘGreen Mountain Locality, Effingham, Carroll County, New Hampshire, USA
15.8km (9.8 miles) ⓘBlue Mountain, Albany, Carroll County, New Hampshire, USA
16.0km (9.9 miles) ⓘLovejoy Gravel pits, Conway, Carroll County, New Hampshire, USA
16.7km (10.4 miles) ⓘGovernment pit, Albany, Carroll County, New Hampshire, USA
19.0km (11.8 miles) ⓘMoose pocket, Blue Mountain, Albany, Carroll County, New Hampshire, USA
19.1km (11.9 miles) ⓘRedstone "Red Granite" quarry, Redstone, Conway, Carroll County, New Hampshire, USA
19.7km (12.3 miles) ⓘMiddle Moat Mountain locality, Hale's Location, Carroll County, New Hampshire, USA
19.9km (12.4 miles) ⓘWhite Mountain Granite quarry, Conway, Carroll County, New Hampshire, USA
20.1km (12.5 miles) ⓘRedstone "Green Granite" quarry, Redstone, Conway, Carroll County, New Hampshire, USA
References
USGS Bull 1312D
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
 
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