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Mamuju area (Mamudju; Manakarra), West Sulawesi Province, Indonesiai
Regional Level Types
Mamuju area (Mamudju; Manakarra)Area
West Sulawesi ProvinceProvince
IndonesiaCountry

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Key


A series of deposits from a beach at Pantai Ngalo and then north towards Mamuju.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Calcite
Formula: CaCO3
Habit: platy
Colour: white
Description: Rare rough platy crystals interstitial in "grape agate".
Reference: Jewel Tunnel specimens
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Jewel Tunnel specimens
Mogánite
Formula: SiO2
Reference: Raman spectroscopy by Joel Dyer - https://www.mindat.org/forum.php?read,6,385869,421736#msg-421736
'Phillipsite'
Reference: https://www.mindat.org/forum.php?read,6,385869,410643#msg-410643
Pyrite
Formula: FeS2
Description: Octahedral crystal embedded in a green silicate (celadonite?) in botryoidal amethyst.
Reference: Jewel Tunnel specimen, visual ID by Alfredo Petrov.
Quartz
Formula: SiO2
Reference: http://www.indoagate.com/manakarra.html Ivey, J (2018) "Grape Agate" from West Sulawesi, Indonesia. The Mineralogical Record, 49:6, 827-836.
Quartz var: Amethyst
Formula: SiO2
Reference: http://www.indoagate.com/manakarra.html Ivey, J (2018) "Grape Agate" from West Sulawesi, Indonesia. The Mineralogical Record, 49:6, 827-836.
Quartz var: Chalcedony
Formula: SiO2
Reference: http://www.indoagate.com/manakarra.html
Saponite
Formula: Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Reference: Analyses by Alfredo Petrov and John Attard, January 2017.
Thorite
Formula: Th(SiO4)
Reference: http://jurnal.batan.go.id/index.php/eksplorium/article/view/3930

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Mogánite4.DA.20SiO2
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Saponite9.EC.45Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Thorite9.AD.30Th(SiO4)
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Phillipsite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Saponite71.3.1b.2Ca0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)
Mogánite-SiO2
'Phillipsite'-
Quartz
var: Amethyst
-SiO2
var: Chalcedony-SiO2

List of minerals for each chemical element

HHydrogen
H SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
H Limonite(Fe,O,OH,H2O)
CCarbon
C CalciteCaCO3
OOxygen
O Quartz (var: Chalcedony)SiO2
O Quartz (var: Amethyst)SiO2
O QuartzSiO2
O SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
O Limonite(Fe,O,OH,H2O)
O CalciteCaCO3
O MogániteSiO2
O ThoriteTh(SiO4)
NaSodium
Na SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
AlAluminium
Al SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si Quartz (var: Chalcedony)SiO2
Si Quartz (var: Amethyst)SiO2
Si QuartzSiO2
Si SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Si MogániteSiO2
Si ThoriteTh(SiO4)
SSulfur
S PyriteFeS2
CaCalcium
Ca SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Ca CalciteCaCO3
FeIron
Fe SaponiteCa0.25(Mg,Fe)3((Si,Al)4O10)(OH)2 · nH2O
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
ThThorium
Th ThoriteTh(SiO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ivey, J (2018) "Grape Agate" from West Sulawesi, Indonesia. The Mineralogical Record, 49:6, 827-836.
Laurs, B.M., Rossman, G.R. (2018) Grape-like "Manakarra" Quartz from Sulawesi, Indonesia. Journal of Gemmology, 36:2, 101-102.
Thompson, S.E. (2016) Manakarra chalcedony aka grape. Lapidary Journal, 20:6, 16-17.

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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.
 
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