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Jacob's Geode Mine, Hamilton, Hancock Co., Illinois, USAi
Regional Level Types
Jacob's Geode MineMine
Hamilton- not defined -
Hancock Co.County
IllinoisState
USACountry

This page kindly sponsored by Warren Brandt
Key
Latitude & Longitude (WGS84):
40° 22' 42'' North , 91° 21' 17'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Hamilton2,853 (2017)2.4km
Keokuk10,609 (2017)3.3km
Warsaw1,551 (2017)7.1km
Alexandria153 (2017)8.8km
Elvaston161 (2017)9.1km


Geode Mine operated by Gary Jacobs

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


9 valid minerals.

Detailed Mineral List:

Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: E Harrington collection
Baryte
Formula: BaSO4
Reference: E Harrington collection
Calcite
Formula: CaCO3
Reference: E Harrington collection
Gypsum
Formula: CaSO4 · 2H2O
Reference: E Harrington collection
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Reference: E Harrington collection
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: E Harrington collection
Marcasite
Formula: FeS2
Reference: E Harrington collection
Pyrite
Formula: FeS2
Reference: E Harrington collection
Quartz
Formula: SiO2
Reference: E Harrington collection
Sphalerite
Formula: ZnS
Reference: E Harrington collection

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Gypsum
var: Selenite
-CaSO4 · 2H2O
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H Gypsum (var: Selenite)CaSO4 · 2H2O
H KaoliniteAl2(Si2O5)(OH)4
H GypsumCaSO4 · 2H2O
CCarbon
C CalciteCaCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
OOxygen
O QuartzSiO2
O CalciteCaCO3
O BaryteBaSO4
O Gypsum (var: Selenite)CaSO4 · 2H2O
O AnkeriteCa(Fe2+,Mg)(CO3)2
O KaoliniteAl2(Si2O5)(OH)4
O GypsumCaSO4 · 2H2O
MgMagnesium
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
SSulfur
S BaryteBaSO4
S Gypsum (var: Selenite)CaSO4 · 2H2O
S PyriteFeS2
S MarcasiteFeS2
S SphaleriteZnS
S GypsumCaSO4 · 2H2O
CaCalcium
Ca CalciteCaCO3
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
Ca GypsumCaSO4 · 2H2O
FeIron
Fe PyriteFeS2
Fe MarcasiteFeS2
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
ZnZinc
Zn SphaleriteZnS
BaBarium
Ba BaryteBaSO4

Mindat Articles

Micro-mineralogy of a single Keokuk geode; how complex can it get? by Kevin Conroy


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North America PlateTectonic Plate

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