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O’Briens Creek Fossicking Area, Mount Surprise, Etheridge Shire, Queensland, Australiai
Regional Level Types
O’Briens Creek Fossicking AreaArea
Mount SurpriseMountain
Etheridge ShireShire

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Latitude & Longitude (WGS84): 18° 1' 0'' South , 144° 0' 18'' East
Latitude & Longitude (decimal): -18.01694,144.00523
GeoHash:G#: rhy3sbj7t
Locality type:Area
Köppen climate type:Aw : Tropical savanna, wet

Mount Surprise is a small township about 200 km SW of Cairns between Mount Garnet and Georgetown on the Gulf Developmental Road.

The locality is an old tin mining area, several kilometres in extent, now set aside for collectors. The tin miners ignored the topaz and the dredge piles still produce gemstones, though digging and sieving your own patch can prove more rewarding.

"From the township [Mount Surprise] go northwest across the rail line on the Mount Surprise Station road and travel 37km to cross Elizabeth Creek. Follow the direction sign to the Fossicking Area along the road to the left for a further 1.5km, passing "Diggers Rest" on the left about 200m before the main entrance sign."(Etheridge Shire Council notes).

Regions containing this locality

Australia Plate

Plate - 0 mineral species & varietal names listed

North Australian Element, Australia

Craton - 769 mineral species & varietal names listed

Etheridge Province, Queensland, Australia

Geologic Province - 103 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

4 valid minerals.

Detailed Mineral List:

Formula: Be3Al2(Si6O18)
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Formula: SnO2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Formula: SiO2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Quartz var: Citrine
Formula: SiO2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Quartz var: Rock Crystal
Formula: SiO2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Quartz var: Smoky Quartz
Formula: SiO2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf
Formula: Al2(SiO4)(F,OH)2
Reference: http://www.nrm.qld.gov.au/mines/fossicking/pdf/obriens_creek.pdf

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
var: Citrine4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 9 - Silicates

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
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Unclassified Minerals, Rocks, etc.
var: Citrine-SiO2
var: Rock Crystal-SiO2
var: Smoky Quartz-SiO2

List of minerals for each chemical element

H TopazAl2(SiO4)(F,OH)2
Be BerylBe3Al2(Si6O18)
O BerylBe3Al2(Si6O18)
O CassiteriteSnO2
O Quartz (var: Citrine)SiO2
O QuartzSiO2
O Quartz (var: Rock Crystal)SiO2
O Quartz (var: Smoky Quartz)SiO2
O TopazAl2(SiO4)(F,OH)2
F TopazAl2(SiO4)(F,OH)2
Al BerylBe3Al2(Si6O18)
Al TopazAl2(SiO4)(F,OH)2
Si BerylBe3Al2(Si6O18)
Si Quartz (var: Citrine)SiO2
Si QuartzSiO2
Si Quartz (var: Rock Crystal)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si TopazAl2(SiO4)(F,OH)2
Sn CassiteriteSnO2


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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Etheridge Shire Council (1996) O'Briens Creek Fossicking Area: Queensland Government Natural Resources and Mines.

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