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Needle Hill Mine, Needle Hill (Cham Shan), Sha Tin District, New Territories, Hong Kong, China

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Latitude & Longitude (WGS84): 22° 22' 59'' North , 114° 8' 59'' East
Latitude & Longitude (decimal): 22.38333,114.15000
GeoHash:G#: wecpmdc2r
Locality type:Mine
Köppen climate type:Cwa : Monsoon-influenced humid subtropical climate


Abandoned tungsten mine with extensive intact underground workings, although portions had to be filled in when the nearby Shing Mun reservoir road tunnels were excavated. Mineralization occurs in quartz veins, and elluvially. Peak production was achieved during the Korean war, when the price of tungsten was high. (Needle Hill, at 532 meters elevation, is the 33rd highest mountain in Hong Kong.)

(During the Korean war, about 5,000 people worked veins and placers for tungsten at several sites in the New Territories, of which Needle Hill was the most important. Many of the other sites were worked in primitive unregulated fashion, causing extensive stream pollution and hillside erosion, which led the Hong Kong government to start regulating mining.)

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


6 valid minerals.

Detailed Mineral List:

'Biotite'
Description: Black micaceous mineral associated with molybdenite and milky quartz. Translucent brown in thin flakes. No expansion or color change on strong heating in pyrex tube in gas flame. Probably = phlogopite.
Reference: Alfredo Petrov collection
Fluorite
Formula: CaF2
Reference: Chan Lung Sang (editor) (2013): "Mineral Bits and Pieces: Hong Kong Mining History" (Department of Earth Sciences, The University of Hong Kong).
Galena
Formula: PbS
Reference: Chan Lung Sang (editor) (2013): "Mineral Bits and Pieces: Hong Kong Mining History" (Department of Earth Sciences, The University of Hong Kong).
Molybdenite
Formula: MoS2
Reference: Chan Lung Sang (editor) (2013): "Mineral Bits and Pieces: Hong Kong Mining History" (Department of Earth Sciences, The University of Hong Kong).
Pyrite
Formula: FeS2
Reference: Chan Lung Sang (editor) (2013): "Mineral Bits and Pieces: Hong Kong Mining History" (Department of Earth Sciences, The University of Hong Kong).
Quartz
Formula: SiO2
Reference: Roberts & Strange, 1991.
Sphalerite
Formula: ZnS
Reference: Chan Lung Sang (editor) (2013): "Mineral Bits and Pieces: Hong Kong Mining History" (Department of Earth Sciences, The University of Hong Kong).
'commodity:Tungsten'
Formula: W
Reference:  
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Roberts & Strange, 1991.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Galena'2.CD.10PbS
'Molybdenite'2.EA.30MoS2
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Quartz'4.DA.05SiO2
Unclassified Minerals, Rocks, etc.
'Biotite'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Biotite'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

OOxygen
O QuartzSiO2
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
FFluorine
F FluoriteCaF2
SiSilicon
Si QuartzSiO2
SSulfur
S GalenaPbS
S MolybdeniteMoS2
S PyriteFeS2
S SphaleriteZnS
CaCalcium
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe PyriteFeS2
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
ZnZinc
Zn SphaleriteZnS
MoMolybdenum
Mo MolybdeniteMoS2
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
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

Triassic
201.3 - 251.902 Ma



ID: 3185812
Mesozoic sedimentary rocks

Age: Triassic (201.3 - 251.902 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]

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)
- Roberts, K.J. and Strange, P.J. (1991) The geology and exploitation of the Needle Hill wolframite deposit. Geological Society of Hong Kong Newsletter, 9, #3, 29-40.


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