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Fumaroles, Gunung Merapi volcano (Mt Merapi), Yogyakarta Province, Java, Indonesia

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude: 7° South , 109° East (est.)
Margin of Error:~234km


High-temperature (800 °C) fumaroles.

Some minerals (halides and sulfates of K, Ca, and Pb; wollastonite, aegirine, magnetite, and cristobalite) were found deposited in glass tubes inserted to fumaroles.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Alunogen
Formula: Al2(SO4)3 · 17H2O
Reference: Imants Kavalieros (1994) Journal of Geochemical Exploration, 50, 479-491.
Anglesite
Formula: PbSO4
Reference: Imants Kavalieros (1994) Journal of Geochemical Exploration, 50, 479-491.
Anhydrite
Formula: CaSO4
Reference: Imants Kavalieros (1994) Journal of Geochemical Exploration, 50, 479-491.
Aphthitalite
Formula: (K,Na)3Na(SO4)2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Chalcocyanite
Formula: CuSO4
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Cristobalite
Formula: SiO2
Reference: Imants Kavalieros (1994) Journal of Geochemical Exploration, 50, 479-491.; Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Galena
Formula: PbS
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Galenobismutite ?
Formula: PbBi2S4
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Halite
Formula: NaCl
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Ilsemannite
Formula: Mo3O8 · nH2O
Reference: Imants Kavalieros (1994) Journal of Geochemical Exploration, 50, 479-491.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Molybdenite
Formula: MoS2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Palmierite ?
Formula: (K,Na)2Pb(SO4)2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Pyrite
Formula: FeS2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Salammoniac
Formula: NH4Cl
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Sphalerite
Formula: ZnS
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Sulphur
Formula: S8
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Sylvite
Formula: KCl
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Cesium Potassium Sulfate)'
Formula: Cs-K-S-O
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Potassium Calcium Sulfate)'
Formula: K2Ca(SO4)2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Potassium Lead Chloride)'
Formula: KPbCl3
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Potassium Zinc Sulfate Chloride)'
Formula: K2Zn(SO4)Cl3 ?
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Sodium Potassium Iron Sulfate Chloride)'
Formula: (Na,K)2Fe(SO4)Cl2
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Unnamed (Zn Sulfate Chloride Hydroxide)'
Formula: Zn3(SO4)(Cl,OH)2 ?
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350
Wollastonite
Formula: CaSiO3
Reference: Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Sulphur'1.CC.05S8
Group 2 - Sulphides and Sulfosalts
'Galena'2.CD.10PbS
'Galenobismutite' ?2.JC.25ePbBi2S4
'Molybdenite'2.EA.30MoS2
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
Group 3 - Halides
'Halite'3.AA.20NaCl
'Salammoniac'3.AA.25NH4Cl
'Sylvite'3.AA.20KCl
Group 4 - Oxides and Hydroxides
'Cristobalite'4.DA.15SiO2
'Ilsemannite'4.FJ.15Mo3O8 · nH2O
'Magnetite'4.BB.05Fe2+Fe3+2O4
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Alunogen'7.CB.45Al2(SO4)3 · 17H2O
'Anglesite'7.AD.35PbSO4
'Anhydrite'7.AD.30CaSO4
'Aphthitalite'7.AC.35(K,Na)3Na(SO4)2
'Chalcocyanite'7.AB.10CuSO4
'Palmierite' ?7.AD.40(K,Na)2Pb(SO4)2
Group 9 - Silicates
'Aegirine'9.DA.25NaFe3+Si2O6
'Wollastonite'9.DG.05CaSiO3
Unclassified Minerals, Rocks, etc.
'Unnamed (Cesium Potassium Sulfate)'-Cs-K-S-O
'Unnamed (Potassium Calcium Sulfate)'-K2Ca(SO4)2
'Unnamed (Potassium Lead Chloride)'-KPbCl3
'Unnamed (Potassium Zinc Sulfate Chloride)'-K2Zn(SO4)Cl3 ?
'Unnamed (Sodium Potassium Iron Sulfate Chloride)'-(Na,K)2Fe(SO4)Cl2
'Unnamed (Zn Sulfate Chloride Hydroxide)'-Zn3(SO4)(Cl,OH)2 ?
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 2
Galenobismutite ?3.7.9.1PbBi2S4
Group 4 - SIMPLE OXIDES
Miscellaneous
Ilsemannite4.6.3.1Mo3O8 · nH2O
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX
Halite9.1.1.1NaCl
Salammoniac9.1.3.1NH4Cl
Sylvite9.1.1.2KCl
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
A2XO4
Aphthitalite28.2.2.1(K,Na)3Na(SO4)2
AXO4
Anglesite28.3.1.3PbSO4
Anhydrite28.3.2.1CaSO4
Chalcocyanite28.3.3.1CuSO4
Miscellaneous
Palmierite ?28.4.3.1(K,Na)2Pb(SO4)2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
A2(XO4)3·H2O
Alunogen29.8.6.1Al2(SO4)3 · 17H2O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Unclassified Minerals, Rocks, etc.
'Unnamed (Cesium Potassium Sulfate)'-Cs-K-S-O
'Unnamed (Potassium Calcium Sulfate)'-K2Ca(SO4)2
'Unnamed (Potassium Lead Chloride)'-KPbCl3
'Unnamed (Potassium Zinc Sulfate Chloride)'-K2Zn(SO4)Cl3 ?
'Unnamed (Sodium Potassium Iron Sulfate Chloride)'-(Na,K)2Fe(SO4)Cl2
'Unnamed (Zn Sulfate Chloride Hydroxide)'-Zn3(SO4)(Cl,OH)2 ?
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H AlunogenAl2(SO4)3 · 17H2O
H IlsemanniteMo3O8 · nH2O
H SalammoniacNH4Cl
H Unnamed (Zn Sulfate Chloride Hydroxide)Zn3(SO4)(Cl,OH)2 ?
NNitrogen
N SalammoniacNH4Cl
OOxygen
O AegirineNaFe3+Si2O6
O AlunogenAl2(SO4)3 · 17H2O
O AnglesitePbSO4
O AnhydriteCaSO4
O Aphthitalite(K,Na)3Na(SO4)2
O ChalcocyaniteCuSO4
O CristobaliteSiO2
O IlsemanniteMo3O8 · nH2O
O MagnetiteFe2+Fe23+O4
O Palmierite(K,Na)2Pb(SO4)2
O Unnamed (Cesium Potassium Sulfate)Cs-K-S-O
O Unnamed (Potassium Calcium Sulfate)K2Ca(SO4)2
O Unnamed (Potassium Zinc Sulfate Chloride)K2Zn(SO4)Cl3 ?
O Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
O Unnamed (Zn Sulfate Chloride Hydroxide)Zn3(SO4)(Cl,OH)2 ?
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O WollastoniteCaSiO3
NaSodium
Na AegirineNaFe3+Si2O6
Na Aphthitalite(K,Na)3Na(SO4)2
Na HaliteNaCl
Na Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
AlAluminium
Al AlunogenAl2(SO4)3 · 17H2O
SiSilicon
Si AegirineNaFe3+Si2O6
Si CristobaliteSiO2
Si WollastoniteCaSiO3
SSulfur
S AlunogenAl2(SO4)3 · 17H2O
S AnglesitePbSO4
S AnhydriteCaSO4
S Aphthitalite(K,Na)3Na(SO4)2
S ChalcocyaniteCuSO4
S GalenaPbS
S GalenobismutitePbBi2S4
S MolybdeniteMoS2
S Palmierite(K,Na)2Pb(SO4)2
S PyriteFeS2
S SphaleriteZnS
S SulphurS8
S Unnamed (Cesium Potassium Sulfate)Cs-K-S-O
S Unnamed (Potassium Calcium Sulfate)K2Ca(SO4)2
S Unnamed (Potassium Zinc Sulfate Chloride)K2Zn(SO4)Cl3 ?
S Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
S Unnamed (Zn Sulfate Chloride Hydroxide)Zn3(SO4)(Cl,OH)2 ?
ClChlorine
Cl HaliteNaCl
Cl SalammoniacNH4Cl
Cl SylviteKCl
Cl Unnamed (Potassium Lead Chloride)KPbCl3
Cl Unnamed (Potassium Zinc Sulfate Chloride)K2Zn(SO4)Cl3 ?
Cl Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
Cl Unnamed (Zn Sulfate Chloride Hydroxide)Zn3(SO4)(Cl,OH)2 ?
KPotassium
K Aphthitalite(K,Na)3Na(SO4)2
K Palmierite(K,Na)2Pb(SO4)2
K SylviteKCl
K Unnamed (Cesium Potassium Sulfate)Cs-K-S-O
K Unnamed (Potassium Calcium Sulfate)K2Ca(SO4)2
K Unnamed (Potassium Lead Chloride)KPbCl3
K Unnamed (Potassium Zinc Sulfate Chloride)K2Zn(SO4)Cl3 ?
K Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
CaCalcium
Ca AnhydriteCaSO4
Ca Unnamed (Potassium Calcium Sulfate)K2Ca(SO4)2
Ca WollastoniteCaSiO3
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe AegirineNaFe3+Si2O6
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe Unnamed (Sodium Potassium Iron Sulfate Chloride)(Na,K)2Fe(SO4)Cl2
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
CuCopper
Cu ChalcocyaniteCuSO4
ZnZinc
Zn SphaleriteZnS
Zn Unnamed (Potassium Zinc Sulfate Chloride)K2Zn(SO4)Cl3 ?
Zn Unnamed (Zn Sulfate Chloride Hydroxide)Zn3(SO4)(Cl,OH)2 ?
MoMolybdenum
Mo IlsemanniteMo3O8 · nH2O
Mo MolybdeniteMoS2
CsCaesium
Cs Unnamed (Cesium Potassium Sulfate)Cs-K-S-O
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
PbLead
Pb AnglesitePbSO4
Pb GalenaPbS
Pb GalenobismutitePbBi2S4
Pb Palmierite(K,Na)2Pb(SO4)2
Pb Unnamed (Potassium Lead Chloride)KPbCl3
BiBismuth
Bi GalenobismutitePbBi2S4

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Imants Kavalieros (1994): Journal of Geochemical Exploration: 50: 479-491
- Symonds, R. (1993): Scanning electron microscope observations of Merapi Volcano, Indonesia. Geochemical Journal: 26: 337-350


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