Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced 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 MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Mount Fogo, Fogo Island, Sotavento Islands, Cape Verdei
Regional Level Types
Mount FogoStratovolcano (Active)
Fogo IslandIsland
Sotavento IslandsGroup of Islands
Cape VerdeCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
14° 56' 57'' North , 24° 20' 26'' West
Latitude & Longitude (decimal):
Type:
Stratovolcano (Active) - last checked 2020
Köppen climate type:
Mindat Locality ID:
131990
Long-form identifier:
mindat:1:2:131990:6
GUID (UUID V4):
0
Name(s) in local language(s):
Pico do Fogo, Ilha do Fogo, Ilhas do Sotavento, Cabo Verde


Pico do Fogo is the highest peak of Cape Verde, rising to 2,829 metres (9,281 ft) above sea level. It is an active stratovolcano lying on the island of Fogo. The main cone last erupted in 1675, causing mass emigration from the island. A subsidiary vent erupted in 1995. The only deadly eruption was in 1847 when earthquakes killed several people.

Summary of Pereira da Silva & Figueiredo:

Systematic mineralogical studies by X-ray diffraction and chemical characterization using a photon microprobe were carried out on incrustations and sublimates of Fogo Island volcano in Cape Verde since the 1995 eruption.
Beyond sulphur, KCl (sylvite), Ca-sulphates (gypsum and anhydrite), and alum are dominant in Pico Pequeno materials, while highly hydrated Al,Mg-sulphates are the main components of recent sublimates at the summit (Pico Grande). These data are considered a chemical fingerprint of the actual magma degasification process. The last eruption of the Fogo volcano, in the Cape Verde Archipelago, occurred in 2014–2015.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


23 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Alum-(Na)
Formula: NaAl(SO4)2 · 12H2O
Alunogen
Formula: Al2(SO4)3 · 17H2O
Anhydrite
Formula: CaSO4
Bassanite
Formula: Ca(SO4) · 0.5H2O
Bianchite
Formula: Zn(SO4) · 6H2O
Blödite
Formula: Na2Mg(SO4)2 · 4H2O
Diopside
Formula: CaMgSi2O6
Fayalite
Formula: Fe2+2SiO4
Gypsum
Formula: CaSO4 · 2H2O
Halite
Formula: NaCl
Halotrichite
Formula: FeAl2(SO4)4 · 22H2O
Hydrokenoralstonite
Formula: Na0.5(Al,Mg)2(F,OH)6 · H2O
'K-alum'
Mendozite
Formula: NaAl(SO4)2 · 11H2O
Millosevichite
Formula: Al2(SO4)3
Native Sulphur
Formula: S8
Natrojarosite
Formula: NaFe3(SO4)2(OH)6
'Olivine Group'
Formula: M2SiO4
Pickeringite
Formula: MgAl2(SO4)4 · 22H2O
Picromerite
Formula: K2Mg(SO4)2 · 6H2O
'Pyroxene Group'
Formula: ADSi2O6
Steklite
Formula: KAl(SO4)2
Sylvite
Formula: KCl
Tamarugite
Formula: NaAl(SO4)2 · 6H2O
Thénardite
Formula: Na2SO4
Titanite
Formula: CaTi(SiO4)O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Sulphur1.CC.05S8
Group 3 - Halides
Halite3.AA.20NaCl
Sylvite3.AA.20KCl
Hydrokenoralstonite3.CF.05 Na0.5(Al,Mg)2(F,OH)6 · H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Millosevichite7.AB.05Al2(SO4)3
Steklite7.AC.20KAl(SO4)2
Thénardite7.AD.25Na2SO4
Anhydrite7.AD.30CaSO4
Natrojarosite7.BC.10NaFe3(SO4)2(OH)6
Bianchite7.CB.25Zn(SO4) · 6H2O
Alunogen7.CB.45Al2(SO4)3 · 17H2O
Halotrichite7.CB.85FeAl2(SO4)4 · 22H2O
Pickeringite7.CB.85MgAl2(SO4)4 · 22H2O
Tamarugite7.CC.10NaAl(SO4)2 · 6H2O
Mendozite7.CC.15NaAl(SO4)2 · 11H2O
Alum-(Na)7.CC.20NaAl(SO4)2 · 12H2O
Blödite7.CC.50Na2Mg(SO4)2 · 4H2O
Picromerite7.CC.60K2Mg(SO4)2 · 6H2O
Gypsum7.CD.40CaSO4 · 2H2O
Bassanite7.CD.45Ca(SO4) · 0.5H2O
Group 9 - Silicates
Fayalite9.AC.05Fe2+2SiO4
Titanite9.AG.15CaTi(SiO4)O
Diopside9.DA.15CaMgSi2O6
Unclassified
'Pyroxene Group'-ADSi2O6
'K-alum'-
'Olivine Group'-M2SiO4

List of minerals for each chemical element

HHydrogen
H AlunogenAl2(SO4)3 · 17H2O
H BassaniteCa(SO4) · 0.5H2O
H BianchiteZn(SO4) · 6H2O
H BlöditeNa2Mg(SO4)2 · 4H2O
H GypsumCaSO4 · 2H2O
H HalotrichiteFeAl2(SO4)4 · 22H2O
H MendoziteNaAl(SO4)2 · 11H2O
H NatrojarositeNaFe3(SO4)2(OH)6
H PickeringiteMgAl2(SO4)4 · 22H2O
H PicromeriteK2Mg(SO4)2 · 6H2O
H Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
H Alum-(Na)NaAl(SO4)2 · 12H2O
H TamarugiteNaAl(SO4)2 · 6H2O
OOxygen
O AlunogenAl2(SO4)3 · 17H2O
O AnhydriteCaSO4
O BassaniteCa(SO4) · 0.5H2O
O BianchiteZn(SO4) · 6H2O
O BlöditeNa2Mg(SO4)2 · 4H2O
O DiopsideCaMgSi2O6
O FayaliteFe22+SiO4
O GypsumCaSO4 · 2H2O
O HalotrichiteFeAl2(SO4)4 · 22H2O
O MendoziteNaAl(SO4)2 · 11H2O
O MillosevichiteAl2(SO4)3
O NatrojarositeNaFe3(SO4)2(OH)6
O PickeringiteMgAl2(SO4)4 · 22H2O
O PicromeriteK2Mg(SO4)2 · 6H2O
O Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
O Alum-(Na)NaAl(SO4)2 · 12H2O
O TamarugiteNaAl(SO4)2 · 6H2O
O ThénarditeNa2SO4
O TitaniteCaTi(SiO4)O
O Pyroxene GroupADSi2O6
O Olivine GroupM2SiO4
O StekliteKAl(SO4)2
FFluorine
F Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
NaSodium
Na BlöditeNa2Mg(SO4)2 · 4H2O
Na HaliteNaCl
Na MendoziteNaAl(SO4)2 · 11H2O
Na NatrojarositeNaFe3(SO4)2(OH)6
Na Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
Na Alum-(Na)NaAl(SO4)2 · 12H2O
Na TamarugiteNaAl(SO4)2 · 6H2O
Na ThénarditeNa2SO4
MgMagnesium
Mg BlöditeNa2Mg(SO4)2 · 4H2O
Mg DiopsideCaMgSi2O6
Mg PickeringiteMgAl2(SO4)4 · 22H2O
Mg PicromeriteK2Mg(SO4)2 · 6H2O
Mg Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
AlAluminium
Al AlunogenAl2(SO4)3 · 17H2O
Al HalotrichiteFeAl2(SO4)4 · 22H2O
Al MendoziteNaAl(SO4)2 · 11H2O
Al MillosevichiteAl2(SO4)3
Al PickeringiteMgAl2(SO4)4 · 22H2O
Al Hydrokenoralstonite Na0.5(Al,Mg)2(F,OH)6 · H2O
Al Alum-(Na)NaAl(SO4)2 · 12H2O
Al TamarugiteNaAl(SO4)2 · 6H2O
Al StekliteKAl(SO4)2
SiSilicon
Si DiopsideCaMgSi2O6
Si FayaliteFe22+SiO4
Si TitaniteCaTi(SiO4)O
Si Pyroxene GroupADSi2O6
Si Olivine GroupM2SiO4
SSulfur
S AlunogenAl2(SO4)3 · 17H2O
S AnhydriteCaSO4
S BassaniteCa(SO4) · 0.5H2O
S BianchiteZn(SO4) · 6H2O
S BlöditeNa2Mg(SO4)2 · 4H2O
S GypsumCaSO4 · 2H2O
S HalotrichiteFeAl2(SO4)4 · 22H2O
S MendoziteNaAl(SO4)2 · 11H2O
S MillosevichiteAl2(SO4)3
S NatrojarositeNaFe3(SO4)2(OH)6
S PickeringiteMgAl2(SO4)4 · 22H2O
S PicromeriteK2Mg(SO4)2 · 6H2O
S Alum-(Na)NaAl(SO4)2 · 12H2O
S Native SulphurS8
S TamarugiteNaAl(SO4)2 · 6H2O
S ThénarditeNa2SO4
S StekliteKAl(SO4)2
ClChlorine
Cl HaliteNaCl
Cl SylviteKCl
KPotassium
K PicromeriteK2Mg(SO4)2 · 6H2O
K SylviteKCl
K StekliteKAl(SO4)2
CaCalcium
Ca AnhydriteCaSO4
Ca BassaniteCa(SO4) · 0.5H2O
Ca DiopsideCaMgSi2O6
Ca GypsumCaSO4 · 2H2O
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti TitaniteCaTi(SiO4)O
FeIron
Fe FayaliteFe22+SiO4
Fe HalotrichiteFeAl2(SO4)4 · 22H2O
Fe NatrojarositeNaFe3(SO4)2(OH)6
ZnZinc
Zn BianchiteZn(SO4) · 6H2O

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Pico_do_Fogo
Wikidata ID:Q499108

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
Atlantic Ocean
West AfricaUN Subregion

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

 
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: September 3, 2026 04:22:21 Page updated: August 12, 2025 01:45:26
Go to top of page