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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Tourmaline from
Riekensglück prospect, Schmalenberg cliff, Bad Harzburg, Goslar District, Lower Saxony, Germany


Locality type:Prospect
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Riekensglück prospect, Schmalenberg cliff, Bad Harzburg, Goslar District, Lower Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:30859
Long-form Identifier:1:3:30859:5
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
1.3km (0.8 miles) ⓘGabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany
3.6km (2.3 miles) ⓘRabenklippe, Bad Harzburg, Goslar District, Lower Saxony, Germany
3.8km (2.4 miles) ⓘSpitzenberg Mines, Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
9.4km (5.8 miles) ⓘRammelsberg Mine, Rammelsberg, Goslar, Goslar District, Lower Saxony, Germany
10.9km (6.7 miles) ⓘOderteich reservoir, Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
13.0km (8.1 miles) ⓘKönigskopf Quarry, Harz (Landkreis Goslar), Goslar District, Lower Saxony, Germany
14.1km (8.7 miles) ⓘWurmberg Quarry, Braunlage, Goslar District, Lower Saxony, Germany
14.8km (9.2 miles) ⓘKnaupsholz quarry, Elbingerode, Oberharz am Brocken, Harz, Saxony-Anhalt, Germany
42.5km (26.4 miles) ⓘKupferberg, Hagental, Gernrode, Quedlinburg, Harz, Saxony-Anhalt, Germany
References
 
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