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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Strunzite from
Fletcher Mine, Groton, Grafton County, New Hampshire, USA


Locality type:Mine
Classification
Species:Strunzite
Formula:Mn2+Fe23+(PO4)2(OH)2 · 6H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Laueite1
Data
Mineral Data:Click here to view Strunzite data
Locality Data:Click here to view Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:37149
Long-form Identifier:1:3:37149:4
GUID (UUID V4):0
Nearest other occurrences of Strunzite
4.5km (2.8 miles) ⓘCharles Davis Mine, Groton, Grafton County, New Hampshire, USA
5.1km (3.2 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
5.3km (3.3 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
11.9km (7.4 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
15.8km (9.8 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
56.2km (34.9 miles) ⓘGeorge Frank Smith Quarry, Newport, Sullivan County, New Hampshire, USA
56.3km (35.0 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, USA
74.9km (46.5 miles) ⓘParker Mountain Mine, Strafford, Strafford County, New Hampshire, USA
77.6km (48.2 miles) ⓘFitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA
84.2km (52.3 miles) ⓘEstes Quarry, West Baldwin, Baldwin, Cumberland County, Maine, USA
References
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
Kreinik, Susanna T. (2022) Phosphate Mineralogy and Paragenesis of the Fletcher Pegmatite, North Groton, New Hampshire. M.S. Thesis, 3039. University of New Orleans. 1-105
 
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