Spectrum
Publication
Band
Band list
Help
Wiki
User guide
Contact
Credits and legal notices
Log in / Register
Experiment
Sample
E
xperiment
Visible near infrared spectra of rocks from the Solfatara crater, Phlegrean fields, Italy
S
ub-
E
xperiment
Crater bedrock
S
pectrum
Visible and near infrared reflectance spectrum of amorphous silica from crater wall(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate-rich coatings (alunite) from an altered crater wall(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate-rich coatings (jarosite) from an altered crater wall(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate (jarosite, alunite) and hematite-bearing coatings from an altered crater wall(Solfatara Crater, Italy)
S
ub-
E
xperiment
Mud pots
S
pectrum
Visible and near infrared reflectance spectrum of amorphous silica from mud pots(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of amorphous silica from mud pots(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of amorphous silica from a dry mud pot(Solfatara Crater, Italy)
S
ub-
E
xperiment
Fumarolic vents at 90°C
S
pectrum
Visible and near infrared reflectance spectrum of sulfur needles from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K, Goldichite) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunite,alunogen, alum-K) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, alum-K, alunite) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alunogen, Goldichite) from within a fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of sulfate deposits (alum-K, alunogen, alunite) from within a fumarolic vent(Solfatara Crater, Italy)
S
ub-
E
xperiment
Fumarolic vents at 160°C
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of As and Hb -bearing sublimates from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
pectrum
Visible and near infrared reflectance spectrum of white rock from a 160°C fumarolic vent(Solfatara Crater, Italy)
S
ample
Orange, nodular material from within a fumarolic vent (L6R14)
L
ayer
Layer #1
Ma
tter
Sulfate deposits from within a pyroclastic vent (L6R14)
M
aterial
sulfate deposits
C
onstituent
Alunite
C
onstituent
Alunogen
C
onstituent
Alum-(K)
C
onstituent
Goldichite
Material
Name
sulfate deposits
Origin
Family
solid
Origin
natural terrestrial
Constituents in material
Number
4
Arrangement
multi-phases
Name
Compound type
Arrangement
Mass ($g$)
Mass fraction
Adsorbat name
Alunite
sulfate
in multi-phases
0.77 $\pm$ 0.1
Alunogen
sulfate
in multi-phases
0.1 $\pm$ 0.1
Alum-(K)
sulfate
in multi-phases
0.11 $\pm$ 0.1
Goldichite
sulfate
in multi-phases
0.02 $\pm$ 0.1