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Pacific Platei
Regional Level Types
Pacific PlateTectonic Plate

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Key
Locality type:
Largest Settlements:
PlacePopulation
Los Angeles3,971,883 (2017)
San Diego1,394,928 (2018)
Tijuana1,300,983 (2018)
Mexicali689,775 (2018)
Long Beach474,140 (2017)
Honolulu371,657 (2012)


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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

590 valid minerals. 32 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 5 erroneous literature entries.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Agglomerate

Alluvium

Amphibolite

Andesite

Anorthosite

Anthracite

'Aplite'

Arenite

'Argillite'

Basalt

Basaltic-andesite

Basanite

Bauxite

Benmoreite

'Bentonite'

'Biotite schist'

Bituminous-coal

Breccia

Calc-silicate rock

'Californite'

Chert

Clay

Coal

Cobbles

Conglomerate

'Cortlandite'

Dacite

Diatomite

Diorite

'Dolerite'

Dolostone

Dunite

'Felsite'

'Flint'

Gabbro

Gabbronorite

'Ganister'

Gneiss

'Gold ore'

Granite

'Granitic gneiss'

Granodiorite

Granulite

Gravel

Greenschist

Greenstone

'Greywacke'

Guano

H6 chondrite meteorite

Harzburgite

Hawaiite

'Hornblende-augite andesite'

'Hornblende-biotite granite'

Hornfels

'Jade'

Kimberlite

L6 chondrite meteorite

'Lamprophyric-pyroxene-calcite-biotite olivine-melilitite'

'Lapis lazuli'

'Leucogranite'

Lherzolite

Lignite

Limestone

'Magnesian Limestone'

Marble

'Marl'

Metachert

Metaconglomerate

Metagreywacke

Metasandstone

Metasedimentary rock

Metavolcanic rock

'Mica schist'

Monzogranite

Monzonite

Mudstone

Mylonite

Nephrite

Norite

Obsidian

PMG pallasite meteorite

Peat

'Pegmatite'

Peridotite

Phosphorite

Phyllite

Picrite

'Pillow lava'

Porcellanite

'Porphyry'

Pumice

Pyroxenite

Quartz-diorite

'Quartz-mica schist'

Quartzite

Rhyolite

Rodingite

Sand

Sandstone

Sapropelite

Schist

Scoria

Sedimentary rock

Serpentinite

Shale

Silcrete

Silt

Siltstone

Skarn

Slate

Syenite

Syenogranite

'Tactite'

Tonalite

Trachyte

'Trondhjemite'

Tuff

'Uintahite'

'Ungrouped IAB iron meteorite'

Wehrlite

Detailed Mineral List:

''
Localities:
Acanthite
Formula: Ag2S
Localities: Reported from at least 9 localities in this region.
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Localities: Reported from at least 26 localities in this region.
'Actinolite-Tremolite Series'
Colour: Pale green
Description: Radiating sheaves 10 to 15 cm long.
Reference: Leo, G.W. (1967) The plutonic and metamorphic rocks of the Ben Lomond Mountain area, Santa Cruz County, California. California Division of Mines and Geology Special Report 91: 41; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 399.
Adamite
Formula: Zn2(AsO4)(OH)
Colour: Pale green
Description: Occurs as small crystals.
Reference: Gross, E.B., Chesterman, C.W., Dunning, G.E., and Cooper, J.F. (1967) Mineralogy of the Kalkar quarry, Santa Cruz, California. California Division Mines and Geol. Special Report 92: 3-10; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 138, 321.
Aegirine
Formula: NaFe3+Si2O6
Localities: Reported from at least 13 localities in this region.
Aegirine-augite
Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6
Reference: Brousse R., Maury R.C. (1978): Minéralogie d'une phonolite à grenat de l'île de Ua Pou (Marquises, Pacifique central). Bulletin de Minéralogie, 101, 3–10.
Aenigmatite
Formula: Na4[Fe2+10Ti2]O4[Si12O36]
'Aeschynite'
Reference: Allibone, A.H., MacKenzie, D., Turnbull, R., Tulloch, A., Craw, D. (2016) Polymetallic mineralisation associated with carboniferous I-type granitoids in central Stewart Island New Zealand, New Zealand Journal of Geology and Geophysics, 59:3, 436-456.
Afwillite
Formula: Ca3(HSiO4)2 · 2H2O
Description: Occurs on the 910 level in veins in complex contact rocks.
Reference: Switzer, G. and Bailey, E.H. (1953) Afwillite from Crestmore, California. American Mineralogist: 38: 629-633.; Murdoch, Joseph (1954) Scawtite and bultfonteinite from Crestmore, California. (abstract): Geological Society of America Bulletin: 65: 1347-1348.; Murdoch, Joseph (1955) Scawtite from Crestmore, California. American Mineralogist: 40: 505-509.
Akatoreite (TL)
Formula: Mn2+9Al2Si8O24(OH)8
Type Locality:
Reference: Read, P.B. & Reay, A. (1971): Akatoreite, a new manganese silicate from eastern Otago, New Zealand. American Mineralogist, 56, 416-426.; Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
Åkermanite
Formula: Ca2Mg(Si2O7)
Reference: Handbook of Mineralogy
Alabandite
Formula: MnS
Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 163 localities in this region.
Albite var: Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 11 localities in this region.
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Localities: Reported from at least 42 localities in this region.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Localities: Reported from at least 15 localities in this region.
'Albite-Anorthite Series'
Localities: Reported from at least 45 localities in this region.
Alforsite
Formula: Ba5(PO4)3Cl
Reference: Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000; American Mineralogist, Volume 69, pages 358-373, 1984; Dunning, G. E., Walstrom, R. E., & Lechner, W. (2018) Barium Silicate Mineralogy of the Western Margin, North American Continent, Part Geology, Origin, Paragenesis and Mineral Distribution from Baja California Norte, Mexico, Western Canada and Alaska, USA. Baymin Journal, Vol. 19, No. 5
'Alkali Feldspar'
Reference: Bohrson W. A., Reid M. R. (1997): Genesis of silicic peralkaline volcanic rocks in an oceanic island setting by crustal melting and open-system processes: Socorro Island, Mexico. Journal of Petrology, 38, 1137–1166.
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 7 localities in this region.
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Localities: Reported from at least 13 localities in this region.
Allanite-(La)
Formula: {CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Orlandi, P., Pasero, M. (2006) Allanite-(La) from Buca Della Vena Mine, Apuan Alps, Italy, an epidote-group mineral. The Canadian Mineralogist, 44, 63-68.
Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Almandine
Formula: Fe2+3Al2(SiO4)3
Localities: Reported from at least 37 localities in this region.
'Almandine-Spessartine Series'
Localities: Reported from at least 20 localities in this region.
'Alum Group'
Formula: XAl(SO4)2 · 12H2O
Reference: Panczner(1987):219 & 366.
Aluminoceladonite
Formula: K(Mg,Fe2+)Al(Si4O10)(OH)2
Reference: Graham, I.T., Colchester, D.M., Harris, S., Lay, A., Burkett, D., Thornton, J. (2018) Aluminoceladonite pseudomorphs after euhedral nepheline from Pudding Island, near Portobello, Dunedin, New Zealand. Australian Journal of Mineralogy, 19:2, 21-25.
Aluminocopiapite
Formula: Al2/3Fe3+4(SO4)6(OH)2 · 20H2O
Reference: SDSU Geology Department unpublished field trip guide, circa 1980.
Alum-(K)
Formula: KAl(SO4)2 · 12H2O
Description: Abundant.
Reference: Donnelly, Maurice (1934), Geology and mineral deposits of the Julian district, San Diego County, California: California Division Mines Report 30; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 293; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 265.
Alunite
Formula: KAl3(SO4)2(OH)6
Alunogen
Formula: Al2(SO4)3 · 17H2O
Colour: White
Description: Occurs as pulverulent material.
Reference: Schrader, Frank Charles, R.W. Stone & Samuel Sanford (1917), Useful minerals of the United States (a revision of Bulletin 585): USGS Bulletin 624: 42; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 62.
'Amber'
Localities: Reported from at least 6 localities in this region.
Amblygonite
Formula: LiAl(PO4)F
Localities: Reported from at least 12 localities in this region.
'Amblygonite-Montebrasite Series'
Amesite
Formula: Mg2Al(AlSiO5)(OH)4
Reference: Mineralogical Record: 17:315
'Amphibole Asbestos'
Description: Occurs as fibers to 1 foot (0.3 meter) long, or longer.
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 68; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 398.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Localities: Reported from at least 14 localities in this region.
'Amphibole Supergroup var: Byssolite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Amphibole Supergroup var: Uralite'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Daly, John W. (1935), Paragenesis of mineral assemblages at Crestmore, California American Mineralogist: 20: 638-659; Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941), Section Across Commercial Quarry, Crestmore, California; American Mineralogist: 26: 367.
Analcime
Formula: Na(AlSi2O6) · H2O
Localities: Reported from at least 45 localities in this region.
Anapaite
Formula: Ca2Fe2+(PO4)2 · 4H2O
Reference: Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
Anatase
Formula: TiO2
Localities: Reported from at least 6 localities in this region.
Andalusite
Formula: Al2(SiO4)O
Localities: Reported from at least 14 localities in this region.
Andalusite var: Chiastolite
Formula: Al2(SiO4)O
Andradite
Formula: Ca3Fe3+2(SiO4)3
Localities: Reported from at least 7 localities in this region.
Andradite var: Melanite
Formula: Ca3Fe3+2(SiO4)3
Reference: Mineralogical Magazine,1980, VOL. 43, PP. 587-96
Andradite var: Titanoan Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Brousse R., Maury R.C. (1978): Minéralogie d'une phonolite à grenat de l'île de Ua Pou (Marquises, Pacifique central). Bulletin de Minéralogie, 101, 3–10.
Anglesite
Formula: PbSO4
Anhydrite
Formula: CaSO4
Localities: Reported from at least 6 localities in this region.
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Localities: Reported from at least 27 localities in this region.
Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Annabergite var: Magnesian Annabergite
Formula: (Ni,Mg)3(AsO4)2 · 8H2O
Description: Occurs as small, well-formed crystals and as fibers.
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 77; Gross, E.B., Chesterman, C.W., Dunning, G.E., and Cooper, J.F. (1967) Mineralogy of the Kalkar quarry, Santa Cruz, California. California Division Mines and Geol. Special Report 92: 3-10; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 138.
Anorthite
Formula: Ca(Al2Si2O8)
Localities: Reported from at least 18 localities in this region.
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Anorthite var: Labradorite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Localities: Reported from at least 11 localities in this region.
'Anorthoclase'
Formula: (Na,K)AlSi3O8
Anthophyllite
Formula: ☐{Mg2}{Mg5}(Si8O22)(OH)2
Antigorite
Formula: Mg3(Si2O5)(OH)4
Localities: Reported from at least 10 localities in this region.
Antigorite var: Bowenite
Formula: Mg3(Si2O5)(OH)4
Description: The Anita Bay greenstone is known as Tangiwai by the Maoris. The term means "tears that come from great sorrow".
Reference: Marshall, P. (1904) Art LIII Magnesian Rocks at Milford Sound, Transactions and Proceedings of the Royal Society of New Zealand 1868-1961, Vol. 37.
Antimony
Formula: Sb
Antlerite
Formula: Cu3(SO4)(OH)4
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Localities: Reported from at least 74 localities in this region.
'Apatite var: Carbonate-rich Apatite'
Reference: Gower, H.G. and Madsen, B.M. (1964) The occurrence of phosphate rock in California. USGS Prof. Paper 501-D: 84; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 317.
'Apatite var: Collophane'
Localities: Reported from at least 8 localities in this region.
Aphthitalite
Formula: (K,Na)3Na(SO4)2
'Apophyllite'
Localities: Reported from at least 11 localities in this region.
Aragonite
Formula: CaCO3
Localities: Reported from at least 40 localities in this region.
Arcanite (TL)
Formula: K2SO4
Type Locality:
Habit: Pseudo-hexagonal due to twinning.
Description: Found as yellow crystals in a pine railroad tie in Tunnel #1.
Reference: Eakle (1908) Bull. Dept. of Geology, Univ. of California: 5: 232. Frondel, C. (1950) Amer. Min.: 35: 596. Palache et al (1951) Dana's Sys. Min., 7th. ed.: 400.
Ardennite-(As)
Formula: Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6
Reference: C. Lemanski, Jr. collection (6782CL).
Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
Localities: Reported from at least 7 localities in this region.
Arsenic
Formula: As
Reference: Blake, Wm. P. (1856), Observations on the physical geography and geology of the coast of California, from Bodega Bay to San Diego: US Coast Survey, Report 1855: 301; Blake, Wm. P. (1858), Report of a geological reconnaissance in California 370 pp., New York.: 301; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 85, 126; Dana 6: 1096; Eakle (1914) Minerals of California.
Arseniosiderite
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 63 localities in this region.
'Asbestos'
Localities: Reported from at least 13 localities in this region.
'Asbestos var: Mountain Leather'
Asbolane
Formula: (Ni,Co)2-xMn4+(O,OH)4 · nH2O
Reference: Uspenskaya, T. Y., Gorshkov, A. I., & Sivtsov, A. V. (1987). Mineralogy and internal structure of Fe-Mn nodules from the Clarion-Clipperton fracture zone. International Geology Review, 29(3), 363-371.
Aspidolite
Formula: NaMg3(AlSi3O10)(OH)2
Reference: C. Lemanski, Jr. (re-entry of lost Mindat data).
Atacamite ?
Formula: Cu2(OH)3Cl
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Localities: Reported from at least 23 localities in this region.
Augite var: Titanian Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
Reference: AmMin 62:634 (1977)
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: DeVito, A. N. (1991), Wulfenite from the Santa Monica Mountains. Bull. Min. Soc. So. Calif.: 61(12) (Dec 1991): 8-9.
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Localities: Reported from at least 7 localities in this region.
Awaruite
Formula: Ni3Fe
Axinite-(Fe)
Formula: Ca2Fe2+Al2BSi4O15OH
Localities: Reported from at least 18 localities in this region.
'Axinite Group'
Localities: Reported from at least 14 localities in this region.
Axinite-(Mn)
Formula: Ca2Mn2+Al2BSi4O15(OH)
Azurite
Formula: Cu3(CO3)2(OH)2
Localities: Reported from at least 24 localities in this region.
Babingtonite
Formula: Ca2(Fe,Mn)FeSi5O14(OH)
Reference: Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
Baotite
Formula: Ba4Ti8Si4O28Cl
'Barkevikite'
Description: Discredited, see amphibole
Reference: Personal communication of Neuerburg to Murdoch & Webb; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 69.
Barroisite
Formula: ☐{CaNa}{Mg3Al2}(AlSi7O22)(OH)2
Reference: Railton, G.T., Watters, W.A. (1990) Minerals of New Zealand. New Zealand Geological Survey Bulletin 104, 89 pages.
Baryte
Formula: BaSO4
Localities: Reported from at least 41 localities in this region.
Bassanite
Formula: Ca(SO4) · 0.5H2O
Reference: Brown, D.W. and Gulbrandsen, R.A., (1973) Chemical Composition of a Saline Lake on Enderbury Island, Phoenix Island Group, Pacific Ocean. Journal of Research, US Geological Survey Vol 1.., No.1, Jan-Feb, pp 105-111.
Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
Bayldonite ?
Formula: PbCu3(AsO4)2(OH)2
Colour: Yellow-green
Description: Some coatings identified as being near bayldonite in composition.
Reference: Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 100.
Bazirite
Formula: BaZr(Si3O9)
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Reference: Dickinson, Kendell A.; Leventhal, Joel S. (1988) The geology, carbonaceous materials, and origin of the epigenetic uranium deposits in the Tertiary Sespe Formation in Ventura County, California. USGS Bull 1771.
Beidellite
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
Bementite
Formula: Mn7Si6O15(OH)8
Bermanite
Formula: Mn2+Mn3+2(PO4)2(OH)2 · 4H2O
Reference: Seaman, 1976. Pegmatite Minerals of the World.
Berthierine
Formula: (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
Berthierite
Formula: FeSb2S4
Localities: Reported from at least 12 localities in this region.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Beryl
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 84 localities in this region.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Localities: Reported from at least 41 localities in this region.
Beryl var: Goshenite
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 19 localities in this region.
Beryl var: Heliodor
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 9 localities in this region.
Beryl var: Morganite
Formula: Be3Al2(Si6O18)
Localities: Reported from at least 37 localities in this region.
Beryllonite
Formula: NaBePO4
Reference: Nicholas J. Rose
Beyerite
Formula: Ca(BiO)2(CO3)2
Localities: Reported from at least 6 localities in this region.
Bieberite
Formula: CoSO4 · 7H2O
Description: Occurs as an alteration product of linnaeite.
Reference: Woodhouse, C.D. & R.M. Norris (1957a), A new occurrence of millerite American Mineralogist: 42: 113-115; Davis, Fenelon Francis and E.H. Bailey (1966) Mercury. California Division Mines and Geology Bulletin 191: 267, 270; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 78.