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Iraí, Rio Grande do Sul, Brazili
Regional Level Types
Iraí- not defined -
Rio Grande do Sul- not defined -
BrazilCountry

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A basaltic terrain with numerous locations of geodes including a variety of minerals, principally commercial quantities of amethyst.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

8 valid minerals. 1 erroneous literature entry.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
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 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 9 - Silicates
Celadonite9.EC.15K(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Mordenite9.GD.35(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
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
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Mordenite77.1.6.1(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Unclassified Minerals, Mixtures, etc.
Quartz
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 Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
CCarbon
C CalciteCaCO3
OOxygen
O Quartz (var: Amethyst)SiO2
O CalciteCaCO3
O CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
O Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
O QuartzSiO2
O HematiteFe2O3
O Quartz (var: Chalcedony)SiO2
O BaryteBaSO4
O Quartz (var: Citrine)SiO2
FFluorine
F FluoriteCaF2
NaSodium
Na Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
MgMagnesium
Mg CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
AlAluminium
Al Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Si Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
Si Quartz (var: Citrine)SiO2
SSulfur
S BaryteBaSO4
KPotassium
K CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
K Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
CaCalcium
Ca CalciteCaCO3
Ca Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Ca FluoriteCaF2
FeIron
Fe CeladoniteK(Mg,Fe2+)Fe3+(Si4O10)(OH)2
Fe HematiteFe2O3
CuCopper
Cu CopperCu
BaBarium
Ba BaryteBaSO4

Localities in this Region
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