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
Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA


09099920017363188706619.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
09028730017272012197906.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
01132670017272012216787.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
07812300017272012229930.jpg
Laumontite, etc.

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
09099920017363188706619.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
00771590017363188715054.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
01132670017272012216787.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
00042820017367561477081.jpg
Laumontite, etc.

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
02119140017363188718761.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
04488160017272012259756.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
01132670017272012216787.jpg
Laumontite

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
07812300017272012229930.jpg
Laumontite, etc.

Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
Locality type:Mine
Classification
Species:Laumontite
Formula:CaAl2Si4O12 · 4H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite3
- var Cleavelandite3
Microcline3
Elbaite3
Tourmaline3
Calcite1
Data
Mineral Data:Click here to view Laumontite data
Locality Data:Click here to view Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:44780
Long-form Identifier:1:3:44780:3
GUID (UUID V4):0
Nearest other occurrences of Laumontite
14.4km (8.9 miles) ⓘVictor Mine (Big Buck mine; Big Buck prospect), Rincon Mountain, Rincon, Rincon Mining District, San Diego County, California, USA
17.1km (10.6 miles) ⓘHercules Mine (Beryl claim; Hercules claim; Hercules group; Hercules prospect), Ramona, Ramona Mining District, San Diego County, California, USA
17.2km (10.7 miles) ⓘLittle Three Mine, Little Three Mine area, Ramona, Ramona Mining District, San Diego County, California, USA
30.7km (19.1 miles) ⓘElizabeth R. Mine (Hazel W. claim), Chief Mountain, Pala, Pala Mining District, San Diego County, California, USA
32.2km (20.0 miles) ⓘTourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego County, California, USA
36.3km (22.6 miles) ⓘMoosa Canyon, Bonsall, San Diego County, California, USA
37.7km (23.4 miles) ⓘCahuilla Mining District, Riverside County, California, USA
References
Foord, E. E., Starkey, H. C., and Taggart, J. E., Jr. (1986) Mineralogy and paragenesis of "pocket" clays and associated minerals in complex granitic pegmatites, San Diego, California. American Mineralogist, 71, 428-439.
Fisher, Jesse (2002) Gem and Rare-Element Pegmatites of Southern California. The Mineralogical Record, 33 (5) 363-407p.5
 
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