Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Pedra Branca, Southern Islands, Huon Valley municipality, Tasmania, Australiai
Regional Level Types
Pedra BrancaIsland
Southern IslandsGroup of Islands
Huon Valley municipalityMunicipality
TasmaniaState
AustraliaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
43° 51' 34'' South , 146° 58' 24'' East
Latitude & Longitude (decimal):
-43.85957,146.97342
GRN:
S30E76
Type:
Island
Köppen climate type:
Cfb : Temperate oceanic climate
Mindat Locality ID:
132791
Long-form identifier:
mindat:1:2:132791:8
GUID (UUID V4):
0


A small rocky island with Jurassic dolerite and hornfelsed Permian mudstones, to the south of Tasmania. It has some guano deposits, some recrystallised/altered into some rare phosphate minerals.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

ⓘ Ammoniotinsleyite
Formula: (NH4)Al2(PO4)2(OH) · 2H2O
References:
R Bottrill, unpublished dataIdentified by Ralph S Bottrill: Wet Chemical, XRD, EPMA
ⓘ 'Apatite'
Formula: Ca5(PO4)3A
ⓘ 'Apatite var. Carbonate-rich Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Calcite
Formula: CaCO3
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Halite
Formula: NaCl
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
ⓘ Leucophosphite
Formula: KFe3+2(PO4)2(OH) · 2H2O
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Phosphosiderite
Formula: FePO4 · 2H2O
ⓘ Prehnite
Formula: Ca2Al2Si3O10(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Spheniscidite
Formula: (NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
ⓘ Strengite
Formula: FePO4 · 2H2O
ⓘ Struvite
Formula: (NH4)Mg(PO4) · 6H2O
ⓘ Variscite
Formula: AlPO4 · 2H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘHalite3.AA.20NaCl
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘPhosphosiderite8.CD.05FePO4 · 2H2O
ⓘStrengite8.CD.10FePO4 · 2H2O
ⓘVariscite8.CD.10AlPO4 · 2H2O
ⓘStruvite8.CH.40(NH4)Mg(PO4) · 6H2O
ⓘAmmoniotinsleyite8.DH.(NH4)Al2(PO4)2(OH) · 2H2O
ⓘLeucophosphite8.DH.10KFe3+2(PO4)2(OH) · 2H2O
ⓘSpheniscidite8.DH.10(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Group 9 - Silicates
ⓘPrehnite9.DP.20Ca2Al2Si3O10(OH)2
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Apatite'-Ca5(PO4)3A
ⓘ'var. Carbonate-rich Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Hⓘ OpalSiO2 · nH2O
Hⓘ PhosphosideriteFePO4 · 2H2O
Hⓘ PrehniteCa2Al2Si3O10(OH)2
Hⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Hⓘ StrengiteFePO4 · 2H2O
Hⓘ Struvite(NH4)Mg(PO4) · 6H2O
Hⓘ VarisciteAlPO4 · 2H2O
Hⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
Hⓘ Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2O
CCarbon
Cⓘ CalciteCaCO3
NNitrogen
Nⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Nⓘ Struvite(NH4)Mg(PO4) · 6H2O
Nⓘ Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2O
OOxygen
Oⓘ CalciteCaCO3
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Oⓘ OpalSiO2 · nH2O
Oⓘ PhosphosideriteFePO4 · 2H2O
Oⓘ PrehniteCa2Al2Si3O10(OH)2
Oⓘ QuartzSiO2
Oⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Oⓘ StrengiteFePO4 · 2H2O
Oⓘ Struvite(NH4)Mg(PO4) · 6H2O
Oⓘ VarisciteAlPO4 · 2H2O
Oⓘ ApatiteCa5(PO4)3A
Oⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2O
FFluorine
Fⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ HaliteNaCl
MgMagnesium
Mgⓘ Struvite(NH4)Mg(PO4) · 6H2O
AlAluminium
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ PrehniteCa2Al2Si3O10(OH)2
Alⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Alⓘ VarisciteAlPO4 · 2H2O
Alⓘ Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2O
SiSilicon
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ OpalSiO2 · nH2O
Siⓘ PrehniteCa2Al2Si3O10(OH)2
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Pⓘ PhosphosideriteFePO4 · 2H2O
Pⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Pⓘ StrengiteFePO4 · 2H2O
Pⓘ Struvite(NH4)Mg(PO4) · 6H2O
Pⓘ VarisciteAlPO4 · 2H2O
Pⓘ ApatiteCa5(PO4)3A
Pⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
Pⓘ Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2O
SSulfur
Sⓘ GypsumCaSO4 · 2H2O
ClChlorine
Clⓘ HaliteNaCl
Clⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Kⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ PrehniteCa2Al2Si3O10(OH)2
Caⓘ ApatiteCa5(PO4)3A
Caⓘ Apatite var. Carbonate-rich ApatiteCa5(PO4)3(Cl/F/OH)
FeIron
Feⓘ LeucophosphiteKFe23+(PO4)2(OH) · 2H2O
Feⓘ PhosphosideriteFePO4 · 2H2O
Feⓘ Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2O
Feⓘ StrengiteFePO4 · 2H2O

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

R Bottrill, unpublished data
Max Banks, unpub. Report to P&WS
Quick NavTopMineral ListOther RegionsReferences
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 19, 2026 19:19:37 Page updated: June 29, 2026 13:51:46
Go to top of page