Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Mount Julia deposit, Henty Mine, Tyndall Valley, West Coast municipality, Tasmania, Australiai
Regional Level Types
Mount Julia depositDeposit (Active)
Henty MineMine (Active)
Tyndall ValleyValley
West Coast municipalityMunicipality
TasmaniaState
AustraliaCountry

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Latitude & Longitude (WGS84):
41° 52' 42'' South , 145° 33' 0'' East
Latitude & Longitude (decimal):
-41.87849,145.55012
GRN:
S28E79
Type:
Deposit (Active) - last checked 2021
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Rosebery1,035 (2012)11.1km
Tullah196 (2014)17.3km
Zeehan845 (2012)17.7km
Gormanston169 (2014)22.2km
Queenstown2,352 (2012)22.5km
Mindat Locality ID:
411263
Long-form identifier:
mindat:1:2:411263:4
GUID (UUID V4):
0
Other/historical names associated with this locality:
Mount Julia gold deposit; Mt Julia deposit


Massive quartz - Au orebody accessed by the Henty Gold Mine.
Late Cambrian replacement deposit in Cambrian dacite and volcaniclastic sedimentary rocks of Mt Read Volcanics.
Gangue: Quartz, dolomite, chlorite, fluorite, pyrite, sericite, topaz.
Total Reserves (01/01/2001): 1,391,000t @ 10.3(g/t) (from MRT databases).

The Mount Julia deposit is similar to the north (Zone 96) part of the Henty mine deposits but has a much lower sulfide content.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 valid minerals.

Rock Types Recorded

Note: 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:

ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Fluorite
Formula: CaF2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Gold
Formula: Au
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Topaz
Formula: Al2(SiO4)(F,OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘTopaz9.AF.35Al2(SiO4)(F,OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ TopazAl2(SiO4)(F,OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ DolomiteCaMg(CO3)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ TopazAl2(SiO4)(F,OH)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
FFluorine
Fⓘ FluoriteCaF2
Fⓘ TopazAl2(SiO4)(F,OH)2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ TopazAl2(SiO4)(F,OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TopazAl2(SiO4)(F,OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ PyriteFeS2
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ DolomiteCaMg(CO3)2
Caⓘ FluoriteCaF2
FeIron
Feⓘ PyriteFeS2
AuGold
Auⓘ Native GoldAu

Other Regions, Features and Areas containing this locality

Australia
Australian PlateTectonic Plate

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.

References

Callaghan, Tim (2001) Geology and Host-Rock Alteration of the Henty and Mount Julia Gold Deposits, Western Tasmania. Economic Geology, 96 (5) 1073-1088 doi:10.2113/gsecongeo.96.5.1073
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