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
Drum Valley, Tulare County, California, USA


Locality type:Valley
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 Drum Valley, Tulare County, California, USA
Data Identifiers
Mindat Occurrence Record ID:668708
Long-form Identifier:1:3:668708:3
GUID (UUID V4):0
Localities for Tourmaline in this Region
Old Soldier Mine, Drum Valley, Tulare County, California, USA
Nearest other occurrences of Tourmaline
1.2km (0.8 miles) ⓘOld Soldier Mine, Drum Valley, Tulare County, California, USA
23.2km (14.4 miles) ⓘUnnamed Rose Quartz occurrence [2], Woodlake, Tulare County, California, USA
25.4km (15.8 miles) ⓘUnnamed Tourmaline occurrence [1], Kaweah, Tulare County, California, USA
32.5km (20.2 miles) ⓘEsquire No. 7 claim, Big Creek, Big Creek-Rush Creek Mining District, Fresno County, California, USA
44.1km (27.4 miles) ⓘWinchester Mine, Green Mountain, Big Dry Creek Mining District, Fresno County, California, USA
56.5km (35.1 miles) ⓘWhite Divide, Mount Goddard, Kings Canyon National Park, Fresno County, California, USA
57.3km (35.6 miles) ⓘFrazier Valley, Tulare County, California, USA
97.2km (60.4 miles) ⓘDeep Canyon, Tungsten Hills, West Bishop, Bishop Mining District (Tungsten Hills Mining District), Inyo County, California, USA
References
Angel, Myron (1890), Kern, Monterey, San Benito, San Luis Obispo, Santa Barbara, Tulare Counties: California Mining Bureau Report 10: 732
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 372.
 
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