No.1 Workings Irish Creek

Past Producer in Rockbridge county in Virginia, United States with commodity Tin
Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.

Geologic information

Identification information

Deposit ID 10131281
MAS/MILS ID 0511630007
Record type Site
Current site name No.1 Workings Irish Creek
Alternate or previous names Irish Creek Tin Deposits

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -79.16415, 37.84945 (WGS84)
Elevation 750
Location accuracy 100(meters)
(click for info)

Geographic areas

Country State County
United States Virginia Rockbridge

Commodities

Commodity Importance
Tin Tertiary

Materials information

Materials Type of material
Ankerite Unknown
Arsenopyrite Unknown
Beryl Unknown
Biotite Unknown
Cassiterite Unknown
Chlorite Unknown
Fluorite Unknown
Ilmenite Unknown
Muscovite Unknown
Phenacite Unknown
Pyrite Unknown
Quartz Unknown
Scheelite Unknown
Siderite Unknown
Sphalerite Unknown
Tourmaline Unknown
Wolframite Unknown

Nearby scientific data

Main Entrance (1) -79.16415, 37.84945

Ore body information

  • Strike N65W
    Dip 89S
    Thickness 0.4M
    Depth to top 0M
    Width 30.5M
    Length 101M
    Area 12HA
    Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control FRACTURING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Strike And Dip N65W
    Minimum Depth to Top 0
    Total Surface Area (HA) 12
    Date of Last Modification 780213

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1846
Year of first production 1890

Mining district

District name Irish Creek

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Unknown

Land status

Ownership category National Forest

Ownership information

  • Type Unknown
    Owner Bethlehem Steel Co.
    Home office Pennsylvania
    Year 1975

Reserves and resources

  • Type In-situ
    Estimate year 1942
    Inferred 3,100mt ore
    Total resources 3,100mt ore
    Commodity Subtype Grade units Group Importance Year
    Tin Sn 1 wt-pct Tin Trace 1942

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 0511630007

General comments

Subject category Comment text
Deposit 1975 ENTRY REC 010 COL 42 - OPEN CUT TIN ORE FROM NO 1 = 2000 ST STOCKPILE 1892. CONCENTRATING MILL (50000 DOLLARS) COMPLETED IN 1892. TRIAL RUNS OF 3.3 % SN GRADE OF 290 ST ORE RESULTED IN 2400 -CONCENTRATE AVERAGING 43% SN SHIPPED TO BOSTON SMELTER. THIS OPERATION CEASED IN 1892 OVER OWNERSHIP LITIGATION. (REC 701 PGS 285-6 ALL PAST DISTRICT PROD. FROM NOS. 1 & 2 WORKINGS FROM RICH P OF ORE THROUGH OPEN CUTS AND UNDERGROUND WORKINGS. RECORDED PRODUCTION FROM NO 1 (1890-1919) AMOUNTED TO 2253 ST ORE CONTAINING POUNDS OF TIN (TABLE REC 701 PG 287.) RECORDS 020 AND 051/ THE PROPERTY HAS REPEATEDLY BECOME INVOLVED IN LITIGATION AND OWNERSHIP DATA IS INCONCLUSIVE IN THE LITERATURE. BETHLEHEM STEEL LAST WORKED THE PROPERTY WHEN 4 HOLES WERE DUG IN 1942 (REC 701 PGS 286-7) REC.060- ORE DEPOSITION/ INTRUSION OF GRANODIORITE IN GNEISS STS, METAMORPHISM OF GRANODIORITE & GNEISS, FRACTURING & FORMATION OF FISSURE VEINS, GREISENIZATION OF HOST ROCK (FORMATION OF CASSITERITE FRACTURE FILLINGS), FORMATION OF LATE VEIN MINERALS, FORMATION OF SURFICIAL OXIDATION PRODUCTS (REC 700 PG 65). REC 060 FIELD 48-50/ 12 CU FT PER TON ORE = 2.67 SP GR IN PLA 701 PG 295). REC 060 FIELD 56-58 UNSPECIFIED 1G = QTZ FISSURE REC 060 FIELD 61-63 FELSIC IG = GREISEN. REC 060 FIELD 66-7 -S & SCHIST = COUNTRY ROCK. REC 070- MINERALOGY OF GREISEN LODE ORE (REC 701 PGS 281 & 2 REC 080- FIELDS 35 THROUGH 75= DIMENSIONS OF BLOCKED OUT LODE OF NO 1 WORKINGS LOCATED ON E SIDE OF PANTHER RUN TRIBUTARY. TIN DEPOSITS ARE VEINLIKE LODES IN PRECAMBRIAN GRANODIORITE. CASSITERITE OCCURS AS DISSEMINATIONS, VEINLETS, & POCKETS IN GREISEN -S OF GRANODIORITE. THESE ZONES BORDER EARLIER MINERALIZED VEINS OF QTZ. LODES STRIKE FROM N 70 E TO N 60 W AND ARE VERTICAL OR DIP STEEPLY TO THE SOUTH.(REC 701 PG 278) MATRIX 6/ SN CONTENT OF GREISEN ORE RANGES FROM 0.11 % TO 3. AVG. 1% (REC 701 PG 271) ASSUMED 12 CU FT OF ORE PER TON = 3 ORE FOR 330X1.25X100 FT LODE AT 1 % AVG GRADE SN.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-84 Sapakoff U.S. Bureau of Mines
Editor 04-JAN-11 Nicholson, S.W. U.S. Geological Survey Reviewed location. Identified records 10131281 (No. 1 Workings Irish Creek) 10179581 (No. 2 Workings) as subsets of master Irish Creek record (10008886)