SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Mooralla, Southern Grampians Shire, Victoria, Australiai
Regional Level Types
Mooralla- not defined -
Southern Grampians ShireShire
VictoriaState
AustraliaCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
37° 20' 49'' South , 142° 3' 4'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Hamilton10,104 (2017)44.2km


Since the 1960s smoky quartz 'geodes' have been highly sought after from the designated gem collecting site near Mooralla, near the Grampians in western Victoria. The geodes are formed below the surface in weathered greenish-grey rhyolite, known as the Rocklands Rhyolite, which erupted in the Late Devonian period. Decades of collecting have resulted in a landscape of low dumps, partly filled in pits and holes as deep as six metres in an area where good specimens were once recovered from close to the surface.

The predominantly smoky quartz crystals, very dark brown to black in colour, are noted for their transparency and lustre, and often contain wispy swirls and gas bubbles in fluid inclusions. They are found as simple to complex crystals or groups of crystals up to three or four centimetres across and loose crystals, weathered out of the rhyolite, are common. Most valued are spherical geodes up to 10 centimetres across, with one or more crystals attached to the inside walls of the geode.

The inside walls of the geodes are often lined with small opaque and colourless quartz crystals up to a few millimetres long, and sometimes amethystine to pink or lilac quartz of similar size.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List

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

5 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!

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

Select Rock List Type

Alphabetical List Tree Diagram

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
var: Agate-SiO2
var: Amethyst-SiO2
var: Chalcedony-SiO2
var: Smoky Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
CCarbon
C SideriteFeCO3
OOxygen
O Quartz (var: Smoky Quartz)SiO2
O SideriteFeCO3
O QuartzSiO2
O Quartz (var: Amethyst)SiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O Quartz (var: Chalcedony)SiO2
SiSilicon
Si Quartz (var: Smoky Quartz)SiO2
Si QuartzSiO2
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Chalcedony)SiO2
SSulfur
S PyriteFeS2
FeIron
Fe SideriteFeCO3
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3

Localities in this Region

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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: August 4, 2020 03:47:12 Page generated: April 4, 2020 16:30:10
Go to top of page