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Artigas, Artigas Department, Uruguayi
Regional Level Types
Artigas- not defined -
Artigas DepartmentDepartment
UruguayCountry

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Bridge to Brazil in Artigas Uruguay

Artigas, Artigas Department, Uruguay
Bridge to Brazil in Artigas Uruguay

Artigas, Artigas Department, Uruguay
Bridge to Brazil in Artigas Uruguay

Artigas, Artigas Department, Uruguay
Latitude & Longitude (WGS84):
30° 25' South , 56° 28' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Artigas41,909 (2012)1.9km
Quaraí23,229 (2012)3.6km


A 62 square mile geode producing area that is concentrated 19 miles south of Artigas

Regions containing this locality

South America PlateTectonic Plate
South AmericaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

5 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Calcite
Formula: CaCO3
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Celadonite
Formula: K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Goethite
Formula: α-Fe3+O(OH)
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Hematite
Formula: Fe2O3
Reference: Rock Currier specimens
Quartz
Formula: SiO2
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Quartz var: Agate
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Quartz var: Amethyst
Formula: SiO2
Reference: [www.johnbetts-fineminerals.com]; Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Quartz var: Chalcedony
Formula: SiO2
Reference: Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Quartz var: Citrine
Formula: SiO2
Description: Quartz colored by inclusions/coatings is not called citrine. Heat treated amethyst turns yellow/brown in color.
Reference: California Federation of Mineralogical Societies Mineral Notes and News: Bulletin, Issues 121-154

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Citrine ?4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 9 - Silicates
Celadonite9.EC.15K(Mg,Fe2+)Fe3+(Si4O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Celadonite71.2.2a.6K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
var: Agate-SiO2
var: Amethyst-SiO2
var: Chalcedony-SiO2
var: Citrine ?-SiO2

List of minerals for each chemical element

HHydrogen
H CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
H Goethiteα-Fe3+O(OH)
CCarbon
C CalciteCaCO3
OOxygen
O Quartz (var: Amethyst)SiO2
O Quartz (var: Chalcedony)SiO2
O CalciteCaCO3
O CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
O HematiteFe2O3
O QuartzSiO2
O Goethiteα-Fe3+O(OH)
O Quartz (var: Citrine)SiO2
MgMagnesium
Mg CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Chalcedony)SiO2
Si CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Si QuartzSiO2
Si Quartz (var: Citrine)SiO2
KPotassium
K CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
CaCalcium
Ca CalciteCaCO3
FeIron
Fe CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Fe HematiteFe2O3
Fe Goethiteα-Fe3+O(OH)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 3185981
Mesozoic volcanic rocks

Age: Mesozoic (66 - 201.3 Ma)

Stratigraphic Name: Parana Flood Basalt

Lithology: Flood basalt(s); mafic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
Cross, B. & Culp Zeitner J. (2006), Geodes Natures Treasures, P.58-60

Localities in this Region
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