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Cygnet district, Huon-Channel region, Huon Valley municipality, Tasmania, Australia

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Latitude & Longitude (WGS84): 43° 9' 39'' South , 147° 4' 35'' East
Latitude & Longitude (decimal): -43.16091,147.07641
Köppen climate type:Cfb : Temperate oceanic climate

This district is notable for a Cretaceous alkaline intrusive complex, with numerous syenite intrusions and sanidine porphyry dykes, some containing feldspathoids, garnet, scapolite and various uncommon minerals. There is also some associated gold mineralisation, locally with Pb+/-Cu+/-Mo .

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.

Mineral List

Mineral list contains entries from the region specified including sub-localities

75 valid minerals.

Rock Types Recorded

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Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

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

201.3 - 252.17 Ma

ID: 3185826
Mesozoic sedimentary rocks

Age: Triassic (201.3 - 252.17 Ma)

Lithology: Sandstone,siltstone,mudstone

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]

Permian - Pennsylvanian
252.17 - 323.2 Ma

ID: 843644
Lower Parmeener Supergroup

Age: Paleozoic (252.17 - 323.2 Ma)

Stratigraphic Name: Lower Parmeener Supergroup

Description: Glacigene and shallow-water glaciomarine sequences of mudstone, sandstone, minor limestone, coal measures, Tasmanite oil shale, and basal tillite, diamictites, rhythmic claystones.

Comments: sedimentary siliciclastic; synthesis of multiple published descriptions

Lithology: Sedimentary siliciclastic

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

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

Localities in this Region

This page contains all mineral locality references listed on 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 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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Bottrill, R. (1998) Minerals of the Cygnet District. Mineralogical Society of Tasmania Newsletter, No. 25, 12.
Taheri, J., and Bottrill, R. S., 1998, Porphyry and Sedimentary-hosted Gold Deposits near Cygnet: New Styles of Gold Mineralisation in Tasmania: Unpub Rept, Mineral Resources Tasmania. 1999/1
Bottrill, R.S., Everard, J.L. and Taheri, J., 2014. Cretaceous Igneous Rocks. In: Corbett, K.D., Quilty, P.G. and Calver, C.R. (editors), Section 10.3. Geological Evolution of Tasmania. Geological Society of Australia Special Publication 24, Geological Society of Australia (Tasmania Division), 453–463.

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