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Petersen Mountain ("Peterson Mountain"; Hallelujah Junction [sic]), Hallelujah Junction area, Washoe Co., Nevada, USAi
Regional Level Types
Petersen Mountain ("Peterson Mountain"; Hallelujah Junction [sic])Mountain
Hallelujah Junction areaArea
Washoe Co.County
NevadaState
USACountry

This page kindly sponsored by Russ Rizzo
Key
Latitude & Longitude (WGS84):
39° 47' 44'' North , 119° 58' 35'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Cold Springs8,544 (2011)12.9km
Chilcoot-Vinton454 (2011)13.9km
Lemmon Valley5,040 (2011)21.1km
Golden Valley1,556 (2011)23.8km
Loyalton702 (2017)26.2km


A series of quartz occurrences located about 30 miles N of Reno.
A long, N-S trending summit straddling the California-Nevada state line. The USGS GNIS database categorizes this linear summit as a range. The majority of the mountain lies in Nevada, with the western foot in Lassen County, California. The quartz occurrence(s) lie on both sides of the state line. Collectors have come to refer to these quartz occurrences simply as "Hallelujah Junction," despite the fact that the junction is located 6-7 miles W/SW of the mountain in California.

NOTE: "Peterson Mountain" is a misnomer.

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

6 valid minerals.

Detailed Mineral List:

'Chlorite Group'
Reference: Rocks & Minerals 82:415-418
Epidote ?
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Colour: dark green
Description: Found as masses of parallel grown and radiating prismatic crystals filling out small hydrothermal veins at the northern side of the mountain, overgrowing small smoky quartz crystals. I can provide a sample for analysis.
Reference: Found myself at the locality in 1999
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rocks & Minerals 82:415-418
Piemontite
Formula: {Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Reference: NBMG Spec. Pub. 31 Minerals of Nevada.
Pyrite
Formula: FeS2
Reference: Rocks & Minerals 82:415-418
Quartz
Formula: SiO2
Quartz var: Amethyst
Formula: SiO2
Quartz var: Ametrine
Formula: SiO2
Reference: Rocks & Minerals 82:415-418
Quartz var: Citrine
Formula: SiO2
Quartz var: Sceptre Quartz
Formula: SiO2
Quartz var: Smoky Quartz
Formula: SiO2

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Ametrine4.DA.05SiO2
var: Citrine4.DA.05SiO2
var: Sceptre Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6-8H2O
Group 9 - Silicates
Epidote ?9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Piemontite9.BG.05a{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Meta-autunite40.2a.1.2Ca(UO2)2(PO4)2 · 6-8H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote ?58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Piemontite58.2.1a.11{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Quartz
var: Amethyst
-SiO2
var: Ametrine-SiO2
var: Citrine-SiO2
var: Sceptre Quartz-SiO2
var: Smoky Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
OOxygen
O Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
O Quartz (var: Smoky Quartz)SiO2
O Quartz (var: Citrine)SiO2
O Quartz (var: Amethyst)SiO2
O QuartzSiO2
O Quartz (var: Sceptre Quartz)SiO2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Quartz (var: Ametrine)SiO2
O Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Quartz (var: Smoky Quartz)SiO2
Si Quartz (var: Citrine)SiO2
Si Quartz (var: Amethyst)SiO2
Si QuartzSiO2
Si Quartz (var: Sceptre Quartz)SiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Quartz (var: Ametrine)SiO2
Si Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
PPhosphorus
P Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
SSulfur
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
Ca Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
MnManganese
Mn Piemontite{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
FeIron
Fe PyriteFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
UUranium
U Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O

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