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Hilltop Mine (Hand Mine; Kasper tunnel; Gray Mine; Dunn shaft; Blacksmith shaft; Rhem adit), Rustler Park, California District, Chiricahua Mts, Cochise Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 59' 7'' North , 109° 17' 25'' West
Latitude & Longitude (decimal): 31.98528,-109.29028
GeoHash:G#: 9tdmcn9px
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


A former small surface and underground Pb-Zn-Ag-Cu-Au-Mo-W-As-Cd mine located in secs. 33 & 34, T16S,R30E and secs. 3,4,5, T17S,R30E (Rustler Park 7.5 minute topo map), 6 miles NW of Paradise, about 26 miles S of San Simon, and near Gleeson and near Hand's Pass. Discovered 1880. First produced 1881. The Hidden Treasure claim was first located in the district - now part of the Hilltop Mine. Owned at times by the Hilltop Silver Lead Mines Co.; Hilltop Metals Mining Co.; Piedmont Mines, Inc.; American Zinc, Lead, and Smelting Co.; and operated by the Queen Mining Co. (1973).

Mineralization is in fissure veins and in irregular replacement lenses and bodies in banded and tilted, silicified Mississippian to Permian limestones and older quartzites. Ores are base metal sulfides and carbonates with wulfenite, often argentiferous, and scheelite. The ore zone is 33.53 meters long and 15.24 meters wide. This mine is famous for the fine and abundant wulfenites it produced. Ore control was in part due to brecciation along faults and fissures in the quartzite and limestone. Locally pipes of massive sulfides (1-6 feet diameter) follow fractures into limestone for distances of up to 50 feet.

Local structures include NE-SW faults.

Workings are extensive, including several tunnels, open cuts, and short adits. They total some 6,096 meters in length and 457.2 meters deep. The Kasper Tunnel is 3,000 feet long with 6,000 feet of workings; the Gray Tunnel is 2,000 feet long with 3,000 feet of workings; the Rhem tunnel is 3,700 feet long with 3,000 feet of workings. A total of some 30,000 tons of base metal sulfide ore was produced intermittently from the early 1910's to about 1954. Best production years were 1924 - 1927.

Shipments were made by burro & wagon in the 1880'S. Several carloads of ore were shipped to El Paso in 1902-1906. About 30,000 tons of base metal sulfide ore produced from the early 1910'S to about 1954.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


37 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: [MinRec 14:121]
Alabandite
Formula: MnS
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 104.
Anglesite
Formula: PbSO4
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 112; Min.Rec.: 14: 121.
Arsenopyrite
Formula: FeAsS
Reference: [MinRec 14:121]
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: [MinRec 14:121]
Calcite
Formula: CaCO3
Reference: MinRec 14:121; Rocks & Min.:65:23.
Caledonite
Formula: Pb5Cu2(SO4)3(CO3)(OH)6
Reference: Rolf Luetcke
Cerussite
Formula: PbCO3
Habit: Large, twinned
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 157; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 50; Miller, D.K. and Wilson, W.E. (1983), Famous Mineral Localities: The Hilltop Mine, Min.Rec.: 14:121-126; Pough, F.N. (1941), Occurrence of willemite, Am.Min.: 26: 92-102; Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 52 (Table 4).
Chalcopyrite
Formula: CuFeS2
Reference: [MinRec 14:121]
'Chlorite Group'
Reference: MRDS database Dep. ID file #10102442, MRDS ID #M002167.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: [MinRec 14:121]
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Reference: Rolf Luetcke
Clinozoisite
Formula: {Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Reference: [MinRec 14:121]
Copper
Formula: Cu
Reference: [MinRec 14:121]
Dolomite
Formula: CaMg(CO3)2
Reference: [MinRec 14:121]
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: [MinRec 14:121]
Fluorite
Formula: CaF2
Reference: Rolf Luetcke
Galena
Formula: PbS
Reference: Min.Rec.: 14:121; Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 52 (Table 4).
Grossular
Formula: Ca3Al2(SiO4)3
Reference: [MinRec 14:121]
Gypsum
Formula: CaSO4 · 2H2O
Reference: [MinRec 14:121]
Hematite
Formula: Fe2O3
Reference: [MinRec 14:121]
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Eckhard D. Stuart
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: Rolf Luetcke
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: [MinRec 14:121]
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: [MinRec 14:121]
Magnetite
Formula: Fe2+Fe3+2O4
Reference: [MinRec 14:121]
Malachite
Formula: Cu2(CO3)(OH)2
Reference: [MinRec 14:121]
Mimetite
Formula: Pb5(AsO4)3Cl
Colour: Bright yellow
Description: Occurs as typical botryoidal coatings associated with wulfenite in gossan cavities.
Reference: C. Lemanski Jr. - self collected
'Psilomelane'
Reference: [MinRec 14:121]
Pyrite
Formula: FeS2
Reference: [MinRec 14:121]
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Reference: [MinRec 14:121]
Pyrolusite
Formula: Mn4+O2
Reference: [MinRec 14:121]
Quartz
Formula: SiO2
Reference: [MinRec 14:121]
Scheelite
Formula: Ca(WO4)
Reference: Min.Rec.: 14:121; Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 52 (Table 4).
Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Reference: Rolf Luetcke
Smithsonite
Formula: ZnCO3
Reference: [MinRec 14:121]
Sphalerite
Formula: ZnS
Reference: Min.Rec.: 14:121; Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 52 (Table 4).
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: [MinRec 14:121]
Willemite
Formula: Zn2SiO4
Fluorescence: Creamy yellow (SW UV).
Description: Fluorescence observed by C. Lemanski, Jr.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 420; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 95; Miller, D.K. and Wilson, W.E. (1983), Famous Mineral Localities: The Hilltop Mine, Min.Rec.: 14:121-126; Pough, F.N. (1941), Occurrence of willemite, Am.Min.: 26: 92-102; Rocks & Min.:64:58.
Wollastonite
Formula: CaSiO3
Reference: [MinRec 14:121]
Wulfenite
Formula: Pb(MoO4)
Habit: Crystal groups
Colour: Deep yellow
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 425; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 80; Miller, D.K. and Wilson, W.E. (1983), Famous Mineral Localities: The Hilltop Mine, Min.Rec.: 14:121-126; Rocks & Min.: 16:133; 63:329; Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 52 (Table 4)..

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
'Alabandite'2.CD.10MnS
'Arsenopyrite'2.EB.20FeAsS
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Hematite'4.CB.05Fe2O3
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
'Pyrolusite'4.DB.05Mn4+O2
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Azurite'5.BA.05Cu3(CO3)2(OH)2
'Calcite'5.AB.05CaCO3
'Cerussite'5.AB.15PbCO3
'Dolomite'5.AB.10CaMg(CO3)2
'Hydrozincite'5.BA.15Zn5(CO3)2(OH)6
'Malachite'5.BA.10Cu2(CO3)(OH)2
'Smithsonite'5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Anglesite'7.AD.35PbSO4
'Caledonite'7.BC.50Pb5Cu2(SO4)3(CO3)(OH)6
'Gypsum'7.CD.40CaSO4 · 2H2O
'Jarosite'7.BC.10KFe3+ 3(SO4)2(OH)6
'Scheelite'7.GA.05Ca(WO4)
'Serpierite'7.DD.30Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
'Wulfenite'7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
'Mimetite'8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
'Actinolite'9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Chrysocolla'9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
'Chrysotile'9.ED.15Mg3(Si2O5)(OH)4
'Clinozoisite'9.BG.05a{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Grossular'9.AD.25Ca3Al2(SiO4)3
'Hemimorphite'9.BD.10Zn4Si2O7(OH)2 · H2O
'Tremolite'9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
'Willemite'9.AA.05Zn2SiO4
'Wollastonite'9.DG.05CaSiO3
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-

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 2 - SULFIDES
AmXp, with m:p = 1:1
Alabandite2.8.1.4MnS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Pyrochlore Group'8.2.1.1A2Nb2(O,OH)6Z
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Smithsonite14.1.1.6ZnCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Serpierite31.6.2.1Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Group 32 - COMPOUND SULFATES
Anhydrous Compound Sulfates containing Hydroxyl or Halogen
Caledonite32.3.2.1Pb5Cu2(SO4)3(CO3)(OH)6
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Mimetite41.8.4.2Pb5(AsO4)3Cl
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Wulfenite48.1.3.1Pb(MoO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Willemite51.1.1.2Zn2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Grossular51.4.3b.2Ca3Al2(SiO4)3
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O
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)
Clinozoisite58.2.1a.4{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
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
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H AzuriteCu3(CO3)2(OH)2
H CaledonitePb5Cu2(SO4)3(CO3)(OH)6
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H ChrysotileMg3(Si2O5)(OH)4
H Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
H HydrozinciteZn5(CO3)2(OH)6
H JarositeKFe3+ 3(SO4)2(OH)6
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H Pyrochlore GroupA2Nb2(O,OH)6Z
H SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
CCarbon
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C CaledonitePb5Cu2(SO4)3(CO3)(OH)6
C CerussitePbCO3
C DolomiteCaMg(CO3)2
C HydrozinciteZn5(CO3)2(OH)6
C MalachiteCu2(CO3)(OH)2
C SmithsoniteZnCO3
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O AnglesitePbSO4
O AzuriteCu3(CO3)2(OH)2
O CalciteCaCO3
O CaledonitePb5Cu2(SO4)3(CO3)(OH)6
O CerussitePbCO3
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O ChrysotileMg3(Si2O5)(OH)4
O Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
O DolomiteCaMg(CO3)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O GrossularCa3Al2(SiO4)3
O GypsumCaSO4 · 2H2O
O HematiteFe2O3
O HemimorphiteZn4Si2O7(OH)2 · H2O
O HydrozinciteZn5(CO3)2(OH)6
O JarositeKFe3+ 3(SO4)2(OH)6
O Limonite(Fe,O,OH,H2O)
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O MimetitePb5(AsO4)3Cl
O Pyrochlore GroupA2Nb2(O,OH)6Z
O PyrolusiteMn4+O2
O QuartzSiO2
O ScheeliteCa(WO4)
O SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
O SmithsoniteZnCO3
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O WillemiteZn2SiO4
O WollastoniteCaSiO3
O WulfenitePb(MoO4)
FFluorine
F FluoriteCaF2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg ChrysotileMg3(Si2O5)(OH)4
Mg DolomiteCaMg(CO3)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Al Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al GrossularCa3Al2(SiO4)3
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si ChrysotileMg3(Si2O5)(OH)4
Si Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si GrossularCa3Al2(SiO4)3
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si QuartzSiO2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si WillemiteZn2SiO4
Si WollastoniteCaSiO3
SSulfur
S AlabanditeMnS
S AnglesitePbSO4
S ArsenopyriteFeAsS
S CaledonitePb5Cu2(SO4)3(CO3)(OH)6
S ChalcopyriteCuFeS2
S GalenaPbS
S GypsumCaSO4 · 2H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S PyriteFeS2
S SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
S SphaleriteZnS
ClChlorine
Cl MimetitePb5(AsO4)3Cl
KPotassium
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca CalciteCaCO3
Ca Clinozoisite{Ca2}{Al3}(Si2O7)(SiO4)O(OH)
Ca DolomiteCaMg(CO3)2
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca FluoriteCaF2
Ca GrossularCa3Al2(SiO4)3
Ca GypsumCaSO4 · 2H2O
Ca ScheeliteCa(WO4)
Ca SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca WollastoniteCaSiO3
MnManganese
Mn AlabanditeMnS
Mn PyrolusiteMn4+O2
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe Limonite(Fe,O,OH,H2O)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
CuCopper
Cu AzuriteCu3(CO3)2(OH)2
Cu CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Cu ChalcopyriteCuFeS2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CopperCu
Cu MalachiteCu2(CO3)(OH)2
Cu SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn HydrozinciteZn5(CO3)2(OH)6
Zn SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
Zn WillemiteZn2SiO4
AsArsenic
As ArsenopyriteFeAsS
As MimetitePb5(AsO4)3Cl
NbNiobium
Nb Pyrochlore GroupA2Nb2(O,OH)6Z
MoMolybdenum
Mo WulfenitePb(MoO4)
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb AnglesitePbSO4
Pb CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Pb CerussitePbCO3
Pb GalenaPbS
Pb MimetitePb5(AsO4)3Cl
Pb WulfenitePb(MoO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene - Oligocene
5.333 - 33.9 Ma



ID: 3184329
Cenozoic volcanic rocks

Age: Cenozoic (5.333 - 33.9 Ma)

Comments: Sierra Madre Occidental

Lithology: Ignimbrite(s); felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Campanian - Oxfordian
72.1 - 163.5 Ma



ID: 2744829
Cretaceous to Late Jurassic sedimentary rocks with minor volcanic rocks

Age: Mesozoic (72.1 - 163.5 Ma)

Stratigraphic Name: Temporal Formation; Bathtub Formation; Sand Wells Formation; Fort Crittenden Formation; McCoy Mountains Formation

Description: Sandstone and conglomerate, rarely forms prominent outcrops; massive conglomerate is typical near base of unit and locally in upper part. These deposits are nonmarine except in southeastern Arizona, where prominent gray marine limestone (Mural Limestone) forms the middle of the Bisbee Group. Sandstones are typically medium-bedded, drab brown, lithic-feldspathic arenites. Includes Bisbee Group (largely Early Cretaceous) and related rocks, Temporal, Bathtub, and Sand Wells formations, rocks of Gu Achi, McCoy Mountains Formation, and Upper Cretaceous Fort Crittenden Formation and equivalent rocks. (80-160 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{arenite,conglomerate}, Minor:{limestone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Badger, S.S. (1911) The Chiricahua Mountains: Engineering and Mining Journal: 91: 663.
Pough, F.N. (1941), Occurrence of Willemite, American Mineralogist: 26: 92-102.
Rocks & Minerals (1941): 16: 133.
Papke, K.G. (1952) Geology and ore deposits of the eastern portion of the Hilltop mine area, Cochise County, Arizona: Tucson, University of Arizona, M.S. thesis, 99 p.
Wells, R.L., and Puttuck, H.E. (1953) [Hill Top mine, California (Chiricahua) district]: U.S. Atomic Energy Commission Preliminary Reconnaissance Report, File A-P-45, 1 p. [also available in U.S. Atomic Energy Commission Report RME-154, p. 71].
Brittain, R.L. (1954) Geology and ore deposits of the western portion of the Hilltop mine area, Cochise County, Arizona: Tucson, University of Arizona, M.S. thesis, 97 p.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 50, 80, 95.
Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 52 (Table 4).
Miller, D.K. and Wilson, W.E. (1983), Famous Mineral Localities: The Hilltop Mine, Mineralogical Record: 14: 121-126.
Rocks & Minerals (1988): 63: 329.
Rocks & Minerals (1989): 64: 58.
Rocks & Minerals (1990): 65.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 5 (Table 1).
Brown, S.D. (1993) U.S. Bureau of Mines Open-File Report, Mineral Land Assessment (MLA) 12-93.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 104, 112, 157, 420, 425.
Arizona Bureau of Mines Bull. 140.
Arizona Bureau of Mines file data.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10102442, MRDS ID #M002167
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0040030156.

Mindat Articles

Hilltop Mine, Chiricahua Mountains Arizona by Rolf Luetcke



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