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Summit Rock, Klamath Co., Oregon, USAi
Regional Level Types
Summit Rock- not defined -
Klamath Co.County
OregonState
USACountry

This page kindly sponsored by Douglas Merson
Key
Latitude & Longitude (WGS84):
43° 5' 57'' North , 122° 4' 41'' West
Latitude & Longitude (decimal):


A pillar. Summit Rock is located approximately 390 meters east of Klamath County's western boundary with Douglas County. It is an andesitic plug, some 60 meters high by 200 meters in diameter.

GPS coordinates: 10T 0575214 4772131.

NOTE: Material originally thought to be ferrosilite turned out to be enstatite, var. bronzite (Bill Wise, Northern California Mineralogical Association spring 2003 newsletter; Micro Probe 9(8), 2003).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


21 valid minerals. 4 erroneous literature entries.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404; [MinRec 16:143]
Albite
Formula: Na(AlSi3O8)
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
'Albite-Anorthite Series'
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
Anorthite var: Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: Micro Probe Vol. 10 No. 6
Cristobalite
Formula: SiO2
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Cuprorivaite
Formula: CaCuSi4O10
Reference: Micro Probe Vol. 10 No. 6
Enstatite
Formula: MgSiO3
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
Enstatite var: Bronzite
Formula: (Mg,Fe2+)2[SiO3]2
Reference: Saul Krotki collection
Ferrosilite
Formula: FeSiO3
Description: Reported "ferrosilite" is really the bronzite variety of Enstatite.
Reference: (Bill Wise, Northern California Mineralogical Association spring 2003 newsletter; Micro Probe 9(8), 2003).
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Wise,W.S (2003) Summit Rock Revisited.Micro Probe: 9(8): 10-13
Fluoro-edenite
Formula: {Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Description: This material had previously been considered to be "magnesiohornblende".) (ID was corrected by Etienne Medard and Donald G. Howard)
Reference: Micro Probe Fall 2007 Volume X Number 6
Hematite
Formula: Fe2O3
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
'Hornblende'
Description: (This is the material now known to be fluoroedenite (qv).)
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
'Hypersthene'
Formula: (Mg,Fe)SiO3
Reference: Howard, D. G. (2008): [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.
Ilmenite
Formula: Fe2+TiO3
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Magnesio-hornblende
Formula: ☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Description: (ID was corrected by Etienne Medard and Donald G. Howard.)
Reference: (Material previously labelled "magnesiohornblende" is now known to be fluoroedenite.)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Opal
Formula: SiO2 · nH2O
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Opal var: Opal-AN
Formula: SiO2 · nH2O
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
'Orthopyroxene Subgroup'
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: personnel communication from Dr. Donald Howard
Pseudobrookite
Formula: Fe2TiO5
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Quartz
Formula: SiO2
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Rutile
Formula: TiO2
Description: Reported "rutile" is really Zircon.
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404 ; Hueneke, J.C. & Rossman, G. R. (1978): Zircons of Summit Rock, Oregon. Mineralogical Record. 6, 392-393
Tridymite
Formula: SiO2
Reference: Kleck. W. D. (1970): Cavity Minerals At Summit Rock. American Mineralogist. 55, 1396-1404
Volborthite
Formula: Cu3(V2O7)(OH)2 · 2H2O
Reference: Micro Probe Vol. 10 No. 6
Zircon
Formula: Zr(SiO4)
Reference: Hueneke, J.C. & Rossman, G. R. (1978): Zircons of Summit Rock, Oregon. Mineralogical Record. 6, 392-393

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Cristobalite4.DA.15SiO2
Hematite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Pseudobrookite4.CB.15Fe2TiO5
Quartz4.DA.05SiO2
Rutile ?4.DB.05TiO2
Tridymite4.DA.10SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Volborthite8.FD.05Cu3(V2O7)(OH)2 · 2H2O
Group 9 - Silicates
Aegirine9.DA.25NaFe3+Si2O6
Albite9.FA.35Na(AlSi3O8)
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Anorthite9.FA.35Ca(Al2Si2O8)
var: Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cuprorivaite9.EA.05CaCuSi4O10
Enstatite9.DA.05MgSiO3
var: Bronzite9.DA.05(Mg,Fe2+)2[SiO3]2
Ferrosilite ?9.DA.05FeSiO3
Fluoro-edenite9.DE.15{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Magnesio-hornblende ?9.DE.10☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Hornblende' ?-
'Hypersthene'-(Mg,Fe)SiO3
'Orthopyroxene Subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile ?4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
AB2X5
Pseudobrookite7.7.1.1Fe2TiO5
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Volborthite40.3.10.1Cu3(V2O7)(OH)2 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Aegirine65.1.3c.2NaFe3+Si2O6
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Enstatite65.1.2.1MgSiO3
Ferrosilite ?65.1.2.2FeSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Cuprorivaite71.2.3.1CaCuSi4O10
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Cristobalite75.1.1.1SiO2
Quartz75.1.3.1SiO2
Tridymite75.1.2.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Anorthite-Ca(Al2Si2O8)
var: Bytownite-(Ca,Na)[Al(Al,Si)Si2O8]
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Enstatite
var: Bronzite
-(Mg,Fe2+)2[SiO3]2
Fluoro-edenite-{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
'Hornblende' ?-
'Hypersthene'-(Mg,Fe)SiO3
Magnesio-hornblende ?-☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Opal
var: Opal-AN
-SiO2 · nH2O
'Orthopyroxene Subgroup'-

List of minerals for each chemical element

HHydrogen
H Opal (var: Opal-AN)SiO2 · nH2O
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H VolborthiteCu3(V2O7)(OH)2 · 2H2O
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
H OpalSiO2 · nH2O
H Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
OOxygen
O CuprorivaiteCaCuSi4O10
O AegirineNaFe3+Si2O6
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O IlmeniteFe2+TiO3
O TridymiteSiO2
O MagnetiteFe2+Fe23+O4
O CristobaliteSiO2
O HematiteFe2O3
O Opal (var: Opal-AN)SiO2 · nH2O
O ZirconZr(SiO4)
O PseudobrookiteFe2TiO5
O EnstatiteMgSiO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O VolborthiteCu3(V2O7)(OH)2 · 2H2O
O Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
O AnorthiteCa(Al2Si2O8)
O Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
O AlbiteNa(AlSi3O8)
O Hypersthene(Mg,Fe)SiO3
O AndraditeCa3Fe23+(SiO4)3
O ApatiteCa5(PO4)3(Cl/F/OH)
O QuartzSiO2
O OpalSiO2 · nH2O
O FluorapatiteCa5(PO4)3F
O Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
O FerrosiliteFeSiO3
O RutileTiO2
FFluorine
F Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
F ApatiteCa5(PO4)3(Cl/F/OH)
F FluorapatiteCa5(PO4)3F
NaSodium
Na AegirineNaFe3+Si2O6
Na Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Na Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg EnstatiteMgSiO3
Mg Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Mg Hypersthene(Mg,Fe)SiO3
Mg Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Al AnorthiteCa(Al2Si2O8)
Al Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Al AlbiteNa(AlSi3O8)
Al Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
SiSilicon
Si CuprorivaiteCaCuSi4O10
Si AegirineNaFe3+Si2O6
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si TridymiteSiO2
Si CristobaliteSiO2
Si Opal (var: Opal-AN)SiO2 · nH2O
Si ZirconZr(SiO4)
Si EnstatiteMgSiO3
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Si AnorthiteCa(Al2Si2O8)
Si Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Si AlbiteNa(AlSi3O8)
Si Hypersthene(Mg,Fe)SiO3
Si AndraditeCa3Fe23+(SiO4)3
Si QuartzSiO2
Si OpalSiO2 · nH2O
Si Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
Si FerrosiliteFeSiO3
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
P FluorapatiteCa5(PO4)3F
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca CuprorivaiteCaCuSi4O10
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca Fluoro-edenite{Na}{Ca2}{Mg5}(AlSi7O22)(F,OH)2
Ca AnorthiteCa(Al2Si2O8)
Ca Anorthite (var: Bytownite)(Ca,Na)[Al(Al,Si)Si2O8]
Ca AndraditeCa3Fe23+(SiO4)3
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca FluorapatiteCa5(PO4)3F
Ca Magnesio-hornblende☐{Ca2}{Mg4Al}(AlSi7O22)(OH)2
TiTitanium
Ti IlmeniteFe2+TiO3
Ti PseudobrookiteFe2TiO5
Ti RutileTiO2
VVanadium
V VolborthiteCu3(V2O7)(OH)2 · 2H2O
FeIron
Fe AegirineNaFe3+Si2O6
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
Fe HematiteFe2O3
Fe PseudobrookiteFe2TiO5
Fe Enstatite (var: Bronzite)(Mg,Fe2+)2[SiO3]2
Fe Hypersthene(Mg,Fe)SiO3
Fe AndraditeCa3Fe23+(SiO4)3
Fe FerrosiliteFeSiO3
CuCopper
Cu CuprorivaiteCaCuSi4O10
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu VolborthiteCu3(V2O7)(OH)2 · 2H2O
ZrZirconium
Zr ZirconZr(SiO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Kleck, W.D. (1970) Cavity Minerals At Summit Rock. American Mineralogist 55, 1396-1404.
Hueneke, J.C. and Rossman, G.R. (1978) Zircons of Summit Rock, Oregon. Mineralogical Record 6, 392-393.
Howard, D.G. (2008) [Title]. International Micromounters Journal, 15 (3 & 4), 3-6.

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