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New Almaden Mine (New Almaden Mines), New Almaden, New Almaden District, Santa Cruz Mts, Santa Clara Co., California, USA

This page kindly sponsored by Michael Cox
Key
Lock Map
Latitude & Longitude (WGS84): 37° 10' 36'' North , 121° 50' 20'' West
Latitude & Longitude (decimal): 37.17694,-121.83889
GeoHash:G#: 9q977rzek
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate


A former Hg occurrence/mine complex located in secs. 2 & 3, T9S, R1E, and in secs. 29 & 33, T8S, R1E, MDM, 1.6 km (1.0 mile) W of New Almaden and about 12½ miles SSE of San Jose, on Victoria shaft, near the top of Mine Hill, on county owned land (Almaden Quicksilver County Park). Discovered in 1824 by Antonio Suñol and Louis Chaboya. First produced in 1845. MRDS database stated accuracy for this location is 1,000 meters. The property was sold by New Idria Mining and Chemical Company to Santa Clara County in 1975. The area is now the Almaden Quicksilver Park.

Mineralization is a Hg deposit hosted in Late Cretaceous serpentinite and tuff. The ore body strikes and dips N55W:45E and is irregular with a depth-to-bottom of 731.52 meters. Ore body No. 1 is a replacement body with an irregular shape. Ore body No. 2 is a tabular body in a fissure vein. The primary mode of origin was hydrothermal activity. Primary ore control was lithology (serpentine-tuff contact) and the secondary control was fracturing. Wallrock alteration is moderate (carbonitization). Associated with Upper Cretaceous rocks of the Santa Teresa Hills. Local rocks include rocks of the Franciscan Complex, unit 1 (Coast Ranges).

Local geologic structures include a local anticline and tension fractures. Regional structure is NW-trending.

Workings include surface and underground openings with a length of 53,106.9 meters and an overall depth of 746.76 meters (cumulative all mines).

Production to the end of 1976 was 38,090,000 kilograms (1,104,922 flasks) of Hg from 1,722,900 tonnes of ore. The average 5 year annual grade was 5.40% and the cumulative grade was 2.21%. Production for the group was more than 1,000,000 flasks of Hg, most from this mine.

Estimates of hypothetical resources range from 100,000 to 1,000,000 flasks of Hg.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


16 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

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!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'Apophyllite'
Description: Well-developed crystals line crevices in rock.
Reference: Clarke, F.W. (1889), A new occurrence of gyrolite: USGS Bulletin 64: 22-23; […American Journal of Science, 3rd. series: 38: 128-129]: 22 (128-129); Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 445.
'Aragotite' (FRL)
Formula: (C,H)
Description: Impregnates siliceous dolomite.
Reference: Durand, F.E. (1873), Description of a new mineral from the New Almaden mine: California Academy of Science Proceedings: 4: 218; Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 289; Hanks, Henry Garber (1905), Notes on “aragotite,” a rare California mineral: Royal Micr. Soc. Jour., 1905: 673-676; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 83.
Arsenopyrite
Formula: FeAsS
Description: Minor amounts occur in Hg ore. Bailey & Everhart question this occurrence.
Reference: Blake, Wm. P. (1854), Quicksilver mine of Almaden, California: American Journal of Science, 2nd. Series: 17: 439; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 87.
'Bitumen'
Reference: Clarke, F.W. (1889), A new occurrence of gyrolite: USGS Bulletin 64: 22-23; […American Journal of Science, 3rd. series: 38: 128-129]: 22 (128-129); Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 81, 212.
Calcite
Formula: CaCO3
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191.
Chalcopyrite
Formula: CuFeS2
Reference: Randol, J.B. (1892), Quicksilver: US Census Report 11, Mineral Industries in the U.S.: 180; Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 98.
Cinnabar
Formula: HgS
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191.; No reference listed
Dolomite
Formula: CaMg(CO3)2
Description: Occasionally occrs in veins in ore.
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191; Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 99; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 221.
Epsomite
Formula: MgSO4 · 7H2O
Description: Abundant on mine walls as a post-mining product.
Reference: Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 102; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 179.
Galena
Formula: PbS
Description: A little occurs in ores.
Reference: Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 102; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 191.
Gyrolite
Formula: NaCa16Si23AlO60(OH)8 · 14H2O
Reference: Clarke, F.W. (1889), A new occurrence of gyrolite: USGS Bulletin 64: 22-23; […American Journal of Science, 3rd. series: 38: 128-129]: 22 (128-129); Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 102; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 478.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Irelan, William, Jr. (1890a), Ninth annual report of the State Mineralogist: California Mining Bureau. Report 9, 352 pp.: 47; Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 102; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 233.
Mercury
Formula: Hg
Description: Small amounts occur here.
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191; Huguenin, Emile & W.O. Castello (1921), Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara, Santa Cruz Counties: California Mining Bureau. Report 17: 222; Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 96; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 260.
'commodity:Mercury'
Formula: Hg
Reference:  
Metacinnabar
Formula: HgS
Habit: Hexagonal, with complex forms
Reference: Melville, William Harlow (1890), Metacinnabarite from New Almaden, California: American Journal of Science, 3rd. series: 40: 291-295; Melville, William Harlow (1891), Metacinnabarite from New Almaden, California: USGS Bulletin 78: 80-83.
Millerite
Formula: NiS
Description: Occurs in Hg ores.
Reference: Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 99; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 65.
Opal
Formula: SiO2 · nH2O
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191.
Pyrite
Formula: FeS2
Habit: Prismatic, slender
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191; Jackson, Abraham Wendell, Jr. (1886), Mineralogical contributions: California Academy of Science, 1st. series, Bulletin 4: 371; Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 97; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 73.
Quartz
Formula: SiO2
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191.
Quartz var: Chalcedony
Formula: SiO2
Reference: Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 191.
'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10040742.
'Serpentinite'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10040742.
Stibnite
Formula: Sb2S3
Reference: Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 98; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 131.
'Tuff'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10040742.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Mercury1.AD.05Hg
Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Cinnabar2.CD.15aHgS
Galena2.CD.10PbS
Metacinnabar2.CB.05aHgS
Millerite2.CC.20NiS
Pyrite2.EB.05aFeS2
Stibnite2.DB.05Sb2S3
Group 4 - Oxides and Hydroxides
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Epsomite7.CB.40MgSO4 · 7H2O
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Group 9 - Silicates
Gyrolite9.EE.30NaCa16Si23AlO60(OH)8 · 14H2O
Unclassified Minerals, Rocks, etc.
'Apophyllite'-
'Aragotite' (TL)-(C,H)
'Bitumen'-
Serpentine Subgroup-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
Serpentinite-
Tuff-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Mercury1.1.7.1Hg
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Cinnabar2.8.14.1HgS
Galena2.8.1.1PbS
Metacinnabar2.8.2.3HgS
Millerite2.8.16.1NiS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Stibnite2.11.2.1Sb2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Epsomite29.6.11.1MgSO4 · 7H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 73 - PHYLLOSILICATES Condensed Tetrahedral Sheets
Condensed Tetrahedral Sheets with double and single layers
Gyrolite73.2.2c.1NaCa16Si23AlO60(OH)8 · 14H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
'Apophyllite'-
'Aragotite' (FRL)-(C,H)
'Bitumen'-
Quartz
var: Chalcedony
-SiO2
'Serpentine Subgroup'-D3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
'Serpentinite'-
'Tuff'-

List of minerals for each chemical element

HHydrogen
H Aragotite(C,H)
H EpsomiteMgSO4 · 7H2O
H GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
H JarositeKFe3+ 3(SO4)2(OH)6
H OpalSiO2 · nH2O
H Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
CCarbon
C Aragotite(C,H)
C CalciteCaCO3
C DolomiteCaMg(CO3)2
OOxygen
O CalciteCaCO3
O Quartz (var: Chalcedony)SiO2
O DolomiteCaMg(CO3)2
O EpsomiteMgSO4 · 7H2O
O GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
O JarositeKFe3+ 3(SO4)2(OH)6
O OpalSiO2 · nH2O
O QuartzSiO2
O Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
NaSodium
Na GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
MgMagnesium
Mg DolomiteCaMg(CO3)2
Mg EpsomiteMgSO4 · 7H2O
Mg Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AlAluminium
Al GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Al Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SiSilicon
Si Quartz (var: Chalcedony)SiO2
Si GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S CinnabarHgS
S EpsomiteMgSO4 · 7H2O
S GalenaPbS
S JarositeKFe3+ 3(SO4)2(OH)6
S MetacinnabarHgS
S MilleriteNiS
S PyriteFeS2
S StibniteSb2S3
KPotassium
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca CalciteCaCO3
Ca DolomiteCaMg(CO3)2
Ca GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
MnManganese
Mn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
FeIron
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe PyriteFeS2
Fe Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
NiNickel
Ni MilleriteNiS
Ni Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn Serpentine SubgroupD3[Si2O5](OH)4 D= Mg, Fe, Ni, Mn, Al, Zn
AsArsenic
As ArsenopyriteFeAsS
SbAntimony
Sb StibniteSb2S3
HgMercury
Hg CinnabarHgS
Hg MercuryHg
Hg MetacinnabarHgS
PbLead
Pb GalenaPbS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary
0 - 2.588 Ma



ID: 3185749
Cenozoic sedimentary rocks

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 2890365
Franciscan Complex, unit 1 (Coast Ranges)

Age: Mesozoic (66 - 201.3 Ma)

Stratigraphic Name: Franciscan Complex; Dothan Formation; Honda Formation; San Luis Formation; Valentine Spring Formation

Description: Franciscan complex: Cretaceous and Jurassic sandstone with smaller amounts of shale, chert, limestone, and conglomerate. Includes Franciscan melange, except where separated--see KJfm.

Comments: Coast Ranges. Primarily Yolla Bolly, Central, and San Simeon terranes of Silberling et al. (1987). Consists primarily of variably deformed and metamorphosed graywacke, mudstone, and chert. Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{sandstone,mudstone}, Minor:{chert}, Incidental:{limestone, conglomerate, greenstone, serpentinite, gabbro, amphibolite, schist, felsic volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Early Jurassic
174.1 - 201.3 Ma



ID: 2588897
Franciscan Complex Central Belt, Basaltic volcanic rocks of Marin Headlands terrane

Age: Early Jurassic (174.1 - 201.3 Ma)

Stratigraphic Name: Franciscan Complex

Description: Basaltic flows, massive to pillowed, locally vesicular, with minor tuff and pillow breccia. Geochemistry suggests a mid-ocean ridge (MORB) or an off-ridge origin. Age is late Early Jurassic (Pliensbachian) or older, based on age of overlying radiolarian cherts.

Comments: New Almaden Block

Reference: Wentworth, C.M., M.C. Blake Jr., R.J. McLaughlin, R.W. Graymer. Preliminary Geologic Map of the San Jose 30 X 60 Minute Quadrangle, California. U.S. Geological Survey Open-File Report 98-795. [91]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Blake, Wm. P. (1854), Quicksilver mine of Almaden, California: American Journal of Science, 2nd. Series: 17: 438-440.
Durand, F.E. (1873), Description of a new mineral from the New Almaden mine: California Academy of Science Proceedings: 4: 218.
Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 289.
Jackson, Abraham Wendell, Jr. (1886), Mineralogical contributions: California Academy of Science, 1st. series, Bulletin 4: 358-374; […(abstract): Neues Jahrb., 1888: 179-181]: 371.
Clarke, F.W. (1889), A new occurrence of gyrolite: USGS Bulletin 64: 22-23; […American Journal of Science, 3rd. series: 38: 128-129]: 22 (128-129).
Irelan, William, Jr. (1890a), Ninth annual report of the State Mineralogist: California Mining Bureau. Report 9, 352 pp.: 47.
Melville, William Harlow (1890), Metacinnabarite from New Almaden, California: American Journal of Science, 3rd. series: 40: 291-295.
Melville, William Harlow (1891), Metacinnabarite from New Almaden, California: USGS Bulletin 78: 80-83.
Dana, Edward Salisbury (1892), System of mineralogy, 6th. ed., 1134 pp., Wiley & Sons, New York: 1095.
Randol, J.B. (1892), Quicksilver: US Census Report 11, Mineral Industries in the U.S.: 180.
Hanks, Henry Garber (1905), Notes on “aragotite,” a rare California mineral: Royal Micr. Soc. Jour., 1905: 673-676.
Forstner, W. (1908), Quicksilver Resources of California, California Division of Mines and Geology Bulletin 27, 270 pp.
Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.: 154, 191.
Huguenin, Emile & W.O. Castello (1921), Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara, Santa Cruz Counties: California Mining Bureau. Report 17: 222.
Franke, Herbert A. (1930), Santa Clara, Nevada, Kings, Tulare Counties: California Mining Bureau (Report 26): 26: 26-33.
Ransome, Alfred Leslie & J.L. Kellogg (1939), Quicksilver resources of California: California Journal of Mines and Geology, California Division Mines (Report 35): 35: 353-486.
U.S. Bureau of Mines staff (1943), New Almaden Mine, Santa Clara County, California, U.S. Bureau of Mines War Minerals Report WMR 203, 11 pp.
Bedford, R.H. and Ricker, S. (1950), Investigation of the New Almaden Mercury Mine, Santa Clara County, California, U.S. Bureau of Mines Report of Investigation RI 4697, 29 pp.
Bailey, Edgar H. (1951), New Almaden quicksilver mine: California Division Mines Bulletin 154: 263-270.
Bailey, Edgar H. (1952), Suggestions for Exploration at New Almaden Quicksilver Mine, California, California Division of Mines Special Report 17, 4 pp.
Davis, Fenelon Francis & C.W. Jennings (1954), Mines and mineral resources of Santa Clara County, California: California Journal of Mines and Geology (Report 50): 50(2): 342-354.
Bailey, Edgar H. & Donald L. Everhart (1964), Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California: USGS PP 360: 96, 97, 98, 99, 102.
Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 81, 83, 87, 134, 145, 172, 179, 191, 212, 233, 260, 266, 302.
Cargill, S. M., Root, D. H. and Bailey, Edgar H. (1980), Resource Estimation from Historical DAta - Mercury, A Test Case: International Association Mathematical Geology Journal: 12(5): 489-522.
Drake, Harold J. (1980), Mercury; Mineral Facts and Problems, U.S. Bureau of Mines Bulletin 671: 563-574.
De Young, John H. (1981), The Lasky Cummulative Tonnage-Grade Relationship - A Reexamination, Ecoinomic geology: 76: 1067-1080.
Cargill, S. M., Root, D. H. and Bailey, Edgar H. (1981), Estimating Usable Resources from Historical Industry DAta, Economic geology: 76: 1081-1095.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 65, 73, 131, 221, 445, 478.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10040742.
Bailey, Edgar H., USGS, personal files.


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