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Keolu Hills, Kailua, Oahu, Honolulu Co., Hawaii, USAi
Regional Level Types
Keolu HillsGroup of Hills
Kailua- not defined -
OahuIsland
Honolulu Co.County
HawaiiState
USACountry

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Key
Latitude & Longitude (WGS84):
21° 22' 45'' North , 157° 43' 54'' West
Latitude & Longitude (decimal):
Locality type:
Group of Hills
Nearest Settlements:
PlacePopulationDistance
Kailua38,635 (2017)2.7km
Waimanalo5,451 (2015)3.8km
Maunawili2,040 (2011)4.1km
Waimānalo Beach4,481 (2015)6.0km
Kaneohe34,597 (2017)7.3km


Basaltic cavities. Located about 1,250 meters inland from Kailua Bay, at elevations from 10 to 130 meters.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


18 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Aragonite
Formula: CaCO3
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Calcite
Formula: CaCO3
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Chabazite-Ca
Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
'Chlorite Group'
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Cristobalite
Formula: SiO2
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Epistilbite
Formula: CaAl2Si6O16 · 5H2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Hematite
Formula: Fe2O3
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Heulandite-Ca
Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Ilmenite
Formula: Fe2+TiO3
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Specimen in the collection of Mike New [Rock Curier]; Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
'Mica Group'
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Mordenite
Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Nontronite
Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Opal
Formula: SiO2 · nH2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Quartz
Formula: SiO2
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Siderite
Formula: FeCO3
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.
Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Reference: Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist, 62, 574-582.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Cristobalite4.DA.15SiO2
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Siderite5.AB.05FeCO3
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chabazite-Ca9.GD.10(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Epistilbite9.GD.45CaAl2Si6O16 · 5H2O
Heulandite-Ca9.GE.05(Ca,Na)5(Si27Al9)O72 · 26H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mordenite9.GD.35(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Nontronite9.EC.40Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Vermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Chlorite Group'-
'Mica Group'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Vermiculite71.2.2d.3Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Nontronite71.3.1a.3Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Chabazite-Ca77.1.2.1(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Epistilbite77.1.6.2CaAl2Si6O16 · 5H2O
Heulandite-Ca77.1.4.1(Ca,Na)5(Si27Al9)O72 · 26H2O
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Mordenite77.1.6.1(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Aragonite-CaCO3
'Chlorite Group'-
Kaolinite-Al2(Si2O5)(OH)4
'Mica Group'-

List of minerals for each chemical element

HHydrogen
H LaumontiteCaAl2Si4O12 · 4H2O
H KaoliniteAl2(Si2O5)(OH)4
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
H OpalSiO2 · nH2O
H Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
H Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
H EpistilbiteCaAl2Si6O16 · 5H2O
H Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
H NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
CCarbon
C CalciteCaCO3
C SideriteFeCO3
C AragoniteCaCO3
OOxygen
O LaumontiteCaAl2Si4O12 · 4H2O
O QuartzSiO2
O KaoliniteAl2(Si2O5)(OH)4
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O CalciteCaCO3
O IlmeniteFe2+TiO3
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O HematiteFe2O3
O SideriteFeCO3
O VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
O CristobaliteSiO2
O OpalSiO2 · nH2O
O AragoniteCaCO3
O Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
O Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
O EpistilbiteCaAl2Si6O16 · 5H2O
O Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
O NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Na Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Na Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Na NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
AlAluminium
Al LaumontiteCaAl2Si4O12 · 4H2O
Al KaoliniteAl2(Si2O5)(OH)4
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Al Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Al Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Al EpistilbiteCaAl2Si6O16 · 5H2O
Al Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Al NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
SiSilicon
Si LaumontiteCaAl2Si4O12 · 4H2O
Si QuartzSiO2
Si KaoliniteAl2(Si2O5)(OH)4
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Si CristobaliteSiO2
Si OpalSiO2 · nH2O
Si Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Si Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Si EpistilbiteCaAl2Si6O16 · 5H2O
Si Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
Si NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
KPotassium
K Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
K Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
CaCalcium
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca CalciteCaCO3
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca AragoniteCaCO3
Ca Chabazite-Ca(Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O
Ca Heulandite-Ca(Ca,Na)5(Si27Al9)O72 · 26H2O
Ca EpistilbiteCaAl2Si6O16 · 5H2O
Ca Mordenite(Na2,Ca,K2)4(Al8Si40)O96 · 28H2O
TiTitanium
Ti IlmeniteFe2+TiO3
FeIron
Fe IlmeniteFe2+TiO3
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe HematiteFe2O3
Fe SideriteFeCO3
Fe VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Fe NontroniteNa0.3Fe2((Si,Al)4O10)(OH)2 · nH2O

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Fujishima, K.Y. and Fan, P-F (1977) Hydrothermal mineralogy of Keolu Hills, Oahu, Hawaii. American Mineralogist: 62: 574-582.
Specimen in the collection of Mike New.

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