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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Laumontite from
Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA


Locality type:Mountain
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA
Data Identifiers
Mindat Occurrence Record ID:603171
Long-form Identifier:1:3:603171:8
GUID (UUID V4):0
Nearest other occurrences of Laumontite
1.9km (1.2 miles) ⓘElizabeth R. Mine (Hazel W. claim), Chief Mountain, Pala, Pala Mining District, San Diego County, California, USA
15.7km (9.7 miles) ⓘMoosa Canyon, Bonsall, San Diego County, California, USA
18.6km (11.5 miles) ⓘVictor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
32.2km (20.0 miles) ⓘHimalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
35.0km (21.8 miles) ⓘCahuilla Mining District, Riverside County, California, USA
45.1km (28.0 miles) ⓘHercules Mine (Beryl claim; Hercules claim; Hercules group; Hercules prospect), Ramona, Ramona Mining District, San Diego County, California, USA
45.1km (28.0 miles) ⓘLittle Three Mine, Little Three Mine area, Ramona, Ramona Mining District, San Diego County, California, USA
76.2km (47.4 miles) ⓘCommercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA
78.2km (48.6 miles) ⓘJensen Quarry, Jurupa Mountains, Jurupa Valley, Riverside County, California, USA
79.8km (49.6 miles) ⓘHenshaw Quarry, Bloomington, San Bernardino County, California, USA
References
Jahns, Richard H., Wright, Lauren A. (1951) Gem- and Lithium-Bearing Pegmatites of the Pala District, San Diego County, California. Special Report 7-A. Mineralogical Society of Southern California 72 pp. p.31
 
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