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Duffie Mine, Gastonia, Gaston Co., North Carolina, USA

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Latitude & Longitude (WGS84): 35° 13' 24'' North , 81° 4' 50'' West
Latitude & Longitude (decimal): 35.22333,-81.08056
GeoHash:G#: dnq26unyy
Locality type:Mine
KΓΆppen climate type:Cfa : Humid subtropical climate


REF:Analytical Data:: NITZE, 1896 ; SRC.REF: NITZE AND HANNA, 1896, P. 148.
Deposit:: NITZE, H. B. C., AND HANNA, G. B., 1896 , GOLD DEPOSITS OF NORTH CAROLINA, NORTH CAROLINA GEOLOGICAL SURVEY BULL. NO. 3 , TEXT 200 P., MINE TEXT P. 148 , LOCATED ON GOLD D
Commodities (Major) - Copper, Gold, Silver
Deposit Type: Hydrothermal Vein
Development Status: Past Producer
Deposit Model: 273: Low-sulfide Au-quartz vein
Host Rock: Diorite, Gabbro
Tectonic Structure: Kings Moutain Belt

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


4 valid minerals.

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:

β“˜ Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'commodity:Copper'
Formula: Cu
Reference: From USGS MRDS database
β“˜ 'Diorite'
Reference: From USGS MRDS database
β“˜ 'Gabbro'
Reference: From USGS MRDS database
β“˜ Gold
Formula: Au
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'commodity:Gold'
Formula: Au
Reference: From USGS MRDS database
β“˜ Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
β“˜ 'commodity:Silver'
Formula: Ag
Reference: From USGS MRDS database

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜'Gold'1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜'Chalcopyrite'2.CB.10aCuFeS2
β“˜'Pyrite'2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜'Quartz'4.DA.05SiO2
Unclassified Minerals, Rocks, etc.
β“˜'Diorite'-
β“˜'Gabbro'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
β“˜Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
β“˜Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
β“˜Pyrite2.12.1.1FeS2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
β“˜Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
β“˜'Diorite'-
β“˜'Gabbro'-

List of minerals for each chemical element

OOxygen
Oβ“˜ QuartzSiO2
SiSilicon
Siβ“˜ QuartzSiO2
SSulfur
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ PyriteFeS2
FeIron
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ PyriteFeS2
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
AuGold
Auβ“˜ GoldAu

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

Paleozoic
251.902 - 541 Ma



ID: 3191508
Paleozoic intrusive rocks

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Intrusive igneous 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]

Cambrian - Neoproterozoic
485.4 - 1000 Ma



ID: 2847055
Felsic Metavolcanic Rock

Age: Neoproterozoic to Cambrian (485.4 - 1000 Ma)

Description: Metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; minor mafic and intermediate metavolcanic rock.

Lithology: Major:{metarhyolite,metadacite}, Minor:{metavolcanic}

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]

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


This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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