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Bicheno, Glamorgan Spring Bay municipality, Tasmania, Australiai
Regional Level Types
Bicheno- not defined -
Glamorgan Spring Bay municipalityMunicipality
TasmaniaState
AustraliaCountry

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Latitude & Longitude (WGS84): 41° 52' 39'' South , 148° 18' 31'' East
Latitude & Longitude (decimal): -41.87763,148.30862
GeoHash:G#: r293yb7j1
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Bicheno640 (2014)0.6km
Cranbrook114 (2016)22.9km
Coles Bay472 (2014)27.7km
Swansea530 (2012)33.4km
Cornwall167 (2014)37.9km


A high level Devonian granite well exposed along the coast, with a blowhole. The granite includes some aplite zones, probably near its roof, and is locally rich in large orthoclase phenocrysts and quartz-tourmaline nodules. There are sparse schlieren (biotite-garnet layers) and miarolitic cavities. There are also sparse quartz veins with some quartz crystals; some good crystals wash up on the beach. Some alluvial tin has been found in the area, presumably derived from this granite.

Regions containing this locality

Australian Plate (Australia Plate)Tectonic Plate
Lachlan Orogen, AustraliaOrogen
Melbourne-Mathinna Zone, Lachlan Orogen, AustraliaZone (Tectonic)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 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:

'Biotite'
Reference: R Bottrill collection
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: R Bottrill collection
Orthoclase
Formula: K(AlSi3O8)
Reference: R Bottrill collection
Quartz
Formula: SiO2
Reference: R Bottrill collection
Quartz var: Amethyst
Formula: SiO2
Reference: R Bottrill collection
Quartz var: Citrine
Formula: SiO2
Reference: R Bottrill collection
Quartz var: Smoky Quartz
Formula: SiO2
Reference: R Bottrill collection
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: R Bottrill collection
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Description: Probably schorl, as black crystals in nodules in granite
Reference: R Bottrill collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Citrine4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 9 - Silicates
Orthoclase9.FA.30K(AlSi3O8)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
'Biotite'-
'Garnet Group'-X3Z2(SiO4)3
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Biotite'-
'Garnet Group'-X3Z2(SiO4)3
Quartz
var: Amethyst
-SiO2
var: Citrine-SiO2
var: Smoky Quartz-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H TopazAl2(SiO4)(F,OH)2
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O QuartzSiO2
O TopazAl2(SiO4)(F,OH)2
O Quartz (var: Citrine)SiO2
O Quartz (var: Smoky Quartz)SiO2
O Garnet GroupX3Z2(SiO4)3
O OrthoclaseK(AlSi3O8)
O Quartz (var: Amethyst)SiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
FFluorine
F TopazAl2(SiO4)(F,OH)2
AlAluminium
Al TopazAl2(SiO4)(F,OH)2
Al OrthoclaseK(AlSi3O8)
SiSilicon
Si QuartzSiO2
Si TopazAl2(SiO4)(F,OH)2
Si Quartz (var: Citrine)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si Garnet GroupX3Z2(SiO4)3
Si OrthoclaseK(AlSi3O8)
Si Quartz (var: Amethyst)SiO2
KPotassium
K OrthoclaseK(AlSi3O8)

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

Late Devonian - Middle Devonian
358.9 - 393.3 Ma



ID: 927464
Bicheno Granite

Age: Devonian (358.9 - 393.3 Ma)

Stratigraphic Name: Bicheno Granite

Description: S-type, reduced, felsic, coarse-grained, fractionated body of syenogranite to alkali-feldspar granite, faulted against Jurassic dolerite

Comments: igneous felsic intrusive; synthesis of multiple published descriptions

Lithology: Igneous felsic intrusive

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 Macrostrat.org, used under Creative Commons Attribution 4.0 License


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