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Magnolia Mine

Past Producer in Lincoln county in Nevada, United States with commodities Gold, Silver, Lead, Arsenic, Copper, Bismuth, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10037390
MRDS ID M032093
Record type Site
Current site name Magnolia Mine
Alternate or previous names NBMG Sample Site 1747
Related records 10270995

Geographic coordinates

Geographic coordinates: -114.7764, 37.48275 (WGS84)
Elevation 1789
Relative position 1.7 MILES N OF DELAMAR, JUST N OF HELENA WASH

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Delamar(quadrangle 1:24,000 scale)

Clover Mountains(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dry Lake Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
05S 64E 25,26 Nevada

Comments on the location information

  • ON QUARTZITE RIDGE

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Arsenic Critical Tertiary
Copper Tertiary
Bismuth Critical Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Psilomelane Ore
Pyrolusite Ore
Pyromorphite Ore
Tetrahedrite Ore

Analytical data

Result ANALYSES OF ORE FROM SMELTER RETURNS, 6 SAMPLES SHOWED: 2.86, 1.43, .81, 1.87, 1.2, .88 OZ/TON AU; 27.3, 18.0, 11.3, 17.0, 12.7, 14.2 OZ/TON AG; 0, 0, 1.1, 1.8, 0, 0% PB; 0, 0.3, 0, .25, 0, .2% CU, WET; 82.8, 84.0, 0.0, 82.8, 86.0, 84.7% INSOLUBLE; 3.2, 2.2, 0.0, 2.9, 3.2, 2.5% FE; AND 1.1, 0.9, 0.0, 1.0, 0.0, .2% S. SEMIQUANTATIVE SPECTROGRAPHIC ANALYSES OF ONE GRAB SAMPLE OF SULFIDE ORE SHOW TRACES OF AG, CU, BI, AND ZN . SAMPLE 1747 CONTAINS 3 % FE, GREATER THAN 5000 PPM MN, 300 PPM AG, 200 PPM AS, 1500 PPM BA, 2000 PPM CU, 100 PPM MO, 10 000 PPM PB, 500 PPM SR, 150 PPM V, 1000 PPM ZN, 100 PPM ZR. SAMPLE 1747 CONTAINS 3 % FE, GREATER THAN 5000 PPM MN, 300 PPM AG, 200 PPM AS, 1500 PPM BA, 2000 PPM CU, 100 PPM MO, 10 000 PPM PB, 500 PPM SR, 150 PPM V, 1000 PPM ZN, 100 PPM ZR.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Early Cambrian
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -114.7764, 37.48275
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Abundant Normal Faults
Type of structure Local
Structure description Fault In The Quartzite

Ore body information

  • General form TABULAR
    Strike N 18 W
    Dip 80 E
    Thickness 48.77M
    Length 335.58M
    Width 30.48M

Controls for ore emplacement

  • Fracture Zone

Comments on the geologic information

  • ORE IS ALONG A DIKE OR VOLCANIC PLUG OF VOLCANIC BRECCIA WITH NUMEROUS RHYOLITE DIKES. DIKE IS AT LEAST 1100 FEET LONG. AVERAGE WIDTH OF WORKINGS IS 100 FEET. THE ORE BRECCIA CONSISTS OF QUARTZITE FRAGMENTS CEMENTED BY IGNEOUS MATERIAL, IN LENSES AND POCKETS

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1892
Discoverer John E. Ferguson
Year of first production 1892

Mining district

District name Delamar (Ferguson) District (Ferguson) District

Land status

Ownership category Private

Comments on the production information

  • PRODUCTION OF 470 TONS PRIOR TO 1902 INCLUDED IN CUMMULATIVE PRODUCTION SEEMS SMALL

Comments on the reserve resource information

  • ADDITIONAL ORE MAY BE FOUND BY FOLLOWING SOME OF THE SEAMS THAT BRANCH FROM THE MAIN ORE SHOOT.

Workings at the site

  • Type of workings Underground
    Length 1310.64M
    Overall depth 91.44M

Comments on the workings information

  • WORKINGS ON 5 LEVELS. MOST OF THE STOPES ARE INACCESSIBLE, AND MANY OF THE DRIFTS HAVE BEEN PARTLY OR COMPLETELY BLOCKED BY WASTE FILLING. MAP OF WORKINGS AVAILABLE IN CALLAGHAN, 1937. WOODFRAME HOIST HOUSE AND TRESTLE STILL PRESENT IN 1977. IN 1983, THERE WAS ONE OPEN ADIT (N10W), LARGE DUMPS, REMAINS OF ORE CHUTE, AND SCATTERED SMALLER ADITS, CABIN RUINS.. WOODFRAME HOIST HOUSE AND TRESTLE STILL PRESENT IN 1977. IN 1983, THERE WAS ONE OPEN ADIT (N10W), LARGE DUMPS, REMAINS OF ORE CHUTE, AND SCATTERED SMALLER ADITS, CABIN RUINS.

Comments on development

  • SMALL SHIPMENTS WERE MADE IN 1920 AND 1921. FIRST ORE WAS MINED AT HIKO. IN 1931, EXPLORATION WAS UNDERTAKEN AT THE MAGNOLIA MINE AND THE J.L. BAIRD AND W. L. AIKEN LEASE PRODUCED CONSIDERABLE ORE IN 1932-1933. NO ACTIVITY AT TIME OF EXAMINATION IN 1983, BUT EVIDENCE OF STAKING AND TRENCHING RECENTLY (WITHIN PAST FEW YEARS) AT MOUTH OF CANYON.

Reference information

Bibliographic references

  • Deposit

    CALLAGHAN, E., 1937, GEOLOGY OF THE DELAMAR DISTRICT, LINCOLN CO., NEV. NEV BUR MINES V 31 NO. 5 P. 66-68

  • Deposit

    TSCHANZ, C.M., AND PAMPEYAN, E.H., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO, NEV., NEV BUR MINES BULL 73 P. 141

  • Deposit

    NBMG DISTRICT FILE 167, ITEM 1, ART BAKER III, 1964, SCOUTING REPORT.

  • Deposit

    NBMG DISTRICT FILE 167, ITEM 7, 1977, POTENTIAL NATIONAL HISTORICAL REGISTER SITE REPORT

  • Deposit

    NBMG DISTRICT FILE 167, PRESS CLIPPINGS, 1899

  • Deposit

    BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, SEPT 30, 1983.

  • Production

    CALLAGHAN, 1937.

  • Reserve-Resource

    TSCHANTZ AND PAMPEYAN, 1970

General comments

Subject category Comment text
Deposit ADIT FOLLOWS N10W, 60SW QUARTZ VEIN AND QUARTZ-CEMENTED QUARTZITE BRECCIA EXPOSED AT PORTAL. VEIN WIDTH IS 1-1.5 FT. THE QUARTZITE WALLROCK IS FRACTURED AND BRECCIATED BUT HAS SHARP CONTACTS WITH THE VEIN. NEAR THE VEIN, THE QUARTZITE IS CUT BY QUARTZ VEINLETS AND ALSO CONTAINS NUMEROUS IRON-STAINED VUGS FILLED WITH PRISMATIC QUARTZ. THE CENTRAL PORTION OF THE MAIN VEIN IS COMPOSED OF QUARTZ-CEMENTED QUARTZITE BRECCIA CONTAINING ANGULAR FRAGMENTS OF PINK QUARTZITE CEMENTED BY A MIXTURE OF MN OXIDES AND CHALCEDONIC QUARTZ. OUTWARD FROM THE BRECCIA ARE BANDED COMB AND CHALCEDONIC QUARTZ VEINS WHICH ARE GENERALLY VUGGY AND CONTAIN IRON OXIDES AND DARK STREAKS WHICH ARE POSSIBLY FINE MN OXIDES OR DISPERSED SULFIDES. QUARTZ STRINGERS FILL FRACTURES IN THE FOOTWALL QUARTZITE. THESE STRINGERS PARALLEL THE ORIENTATION OF THE MAIN VEIN, WHICH IS EMPLACED ALONG A FAULT, AS EVIDENCED BY BRECCIATION OF HOST ROCK AND CENTRAL VEIN, AND BY THE PRESENCE OF SLICKS ON THE FOOTWALL QUARTZITE. QUARTZ
Deposit VEIN MATERIAL FOUND ON THE DUMP IS BANDED, WHITE TO VITREOUS (CLEAR), AND COCKSCOMB, SUGARY OR CHALCEDONIC IN TEXTURE. COMB QUARTZ CEMENTS FRAGMENTS IN THE BRECCIA. SOME OXIDIZED PYRITE WAS OBSERVED IN IRON-STAINED VUGS. PYRITIZED DARK GREY FINELY CRYSTALLINE SILICEOUS BRECCIA WAS ALSO NOTED. SOME SILICEOUS OR JASPERY BRECCIA CONTAINED BANDS OF FINELY CRYSTALLINE CHALCOPYRITE AND PYRITE (UNOXIDIZED). THE SILICEOUS BRECCIAS SHOW FINE, LATE-STAGE QUARTZ VEINLETS. MALACHITE, TETRAHEDRITE, PSILOMELANE AND PYROLUSITE WERE ALSO NOTED IN VEIN MATERIAL. MALACHITE-COATED COMB QUARTZ VEIN MATERIAL ON DUMP CONTAINS SPECKS OF VISIBLE GOLD. MONZONITE PORPHYRY AND RHYOLITIC VOLCANIC ROCK WERE FOUND ON DUMP BUT NOT LOCATED IN PLACE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Harner, Joy L. (Roberts, Ralph J.) U.S. Geological Survey
Updater 01-AUG-1984 La Pointe, D.D. (Tingley, J.V.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.