Balsam Gap Olivine Deposit

Past Producer in Jackson county in North Carolina, United States with commodities Olivine, Chromium, Talc-Soapstone, Platinum, Palladium, Rhodium

Geologic information

Identification information

Deposit ID 10102296
MRDS ID K001892
Record type Site
Current site name Balsam Gap Olivine Deposit
Related records 10272941

Geographic coordinates

Geographic coordinates: -83.09544, 35.42566 (WGS84)
Relative position 0.5 MI SOUTHWEST OF BALSAM
(click for info)

Geographic areas

Country State County
United States North Carolina Jackson

Commodities

Commodity Importance
Olivine Primary
Chromium Tertiary
Talc-Soapstone Tertiary
Platinum Tertiary
Palladium Tertiary
Rhodium Tertiary

Comments on the commodity information

  • BRONZITE HAS BEEN ALTERED TO TALC

Materials information

Materials Type of material
Chromite Ore
Olivine Ore
Talc Ore

Alteration

  • (Local) Serpentinization

Analytical data

Result <1 PPB PT, 10 PPB PD, 0.3 PPB RH IN ROCK SAMPLE
Result <45 PPB PT, <45 PPB PD, 63 PPB RH IN CHROMITE CONCENTRATES

Mineral occurrence model information

Model code 16
USGS model code 8b
Deposit model name Podiform chromite (major)

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Tallulah Falls Formation;Tallulah Falls Formation
    Rock description Tallulah Falls Formation;Tallulah Falls Formation
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Balsam Gap Dunite Body
    Rock description Balsam Gap Dunite Body;Balsam Gap Dunite Body

Nearby scientific data

(1) -83.09544, 35.42566

Geologic structures

Type Description Terms
Regional East Of Brevard Fault Zone
Local Numerous Faults And Joints Creating Large Blocks

Ore body information

  • Name of the ore body BALSAM GAP
    General form LENS
    Width 243.84M
    Length 609.6M

Controls for ore emplacement

  • Magmatic Crystallization Processes

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Year of first production 1933
Production years 1933

Mining district

District name Webster-Baslam Area

Ownership information

  • Type Operator
    Owner Balsam Gap Co., (Reportedly A Subsidiary Of E.J. Lavino And Co.)
    First year 1965

Comments on the workings information

  • LOCATION IS WELL SUITED FOR DEVELOPMENT OF A QUARRY

Comments on development

  • FIRST COMMERCIAL PRODUCTION OF OLIVINE IN THE U.S. WAS FROM THIS DEPOSIT AND THE DEPOSIT HAS PRODUCED ABOUT HALF THE OLIVINE MARKETED FROM NORTH CAROLINA

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS K001892

Bibliographic references

  • Analytical Data

    LIPIN, 1984

  • Deposit

    HUNTER, C.E., 1941, FORSTERITE OLIVINE DEPOSITS OF NORTH CAROLINA AND GEORGIA: NORTH CAROLINA DIVISION OF MINERAL RESOURCES BULLETIN 41, P. 67-74.

  • Deposit

    LARRABEE, D.M., AND SWEENEY, J.W., 1968, OLIVINE, IN MINERAL RESOURCES OF THE APPALACHIAN REGION: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 580, P. 326-327.

  • Deposit

    LIPIN, B.R., 1984, CHROMITE FROM THE BLUE RIDGE PROVINCE OF NORTH CAROLINA: AMERICAN JOURNAL OF SCIENCE, V. 284, P. 507-529.

  • Deposit

    1941 GEOLMAP TENNESSEE VALLEY AUTHORITY, REPOR

  • Production

    HUNTER, 1941

General comments

Subject category Comment text
Deposit DEPOSIT IS COMPOSED OF RELATIVELY SOUND DUNITE AND SAXONITE. MOST OF THE SAXONITE AND ALTERATION MINERALS ARE SEGREGATED NEAR INTERIOR FAULTS AND THE BORDERS OF THE BODY. MUCH OF THE DEPOSIT CONSISTS OF LIGHT GREEN, COARSE-GRAINED, FRIABLE DUNITE CONTAINING FEW ACCESSORY MINERALS WITH LITTLE VISIBLE SERPENTINIZATION. AOBUT 25% OF DEPOSIT IS COARSE-GRAINED AND LIGHT GREEN SAXONITE CONTAINING SPOTS OF TALC. ZONES OF CHROMITE UP TO 3 FT WIDE AND SEVERAL TIMES THAT LENGTH ARE FOUND NEAR THE BORDERS OF THE COARSE-TEXTURED DUNITE. THE DEPOSIT IS BROKEN INTO LARGE BLOCKS BY NUMEROUS FAULTS AND JOINTS. LONG AXIS OF THE DUNITE BODY TRENDS N-S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1974 Fagan, James M. U.S. Geological Survey
Updater 01-DEC-1993 Peterson, Jocelyn A. U.S. Geological Survey