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Ingram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond), Gold Hill District, Boulder Co., Colorado, USA i
Regional Level Types
Ingram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond) Mine
Gold Hill District Mining District
Boulder Co. County
Colorado State
USA Country

Regional Level Types
Ingram mine (Valley Forge Occurrence; Critic and Railroad Boy; Sunshine; Three Brothers; Atchison; Belle; Golden Eagle; Melvina; Baron; Richmond)	Mine
Gold Hill District	Mining District
Boulder Co.	County
Colorado	State
USA	Country

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Key

Hessite

Ingram mine, Gold Hill District, Boulder Co., Colorado, USA

Latitude & Longitude (WGS84):

40° 3' 7'' North , 105° 23' 12'' West

Latitude & Longitude (decimal):

40.05194,-105.38667

GeoHash:

G#: 9xj5cg5z2

Locality type:

Mine

Köppen climate type:

BSk : Cold semi-arid (steppe) climate

Nearest Settlements:

Place	Population	Distance
Sunshine	230 (2011)	2.3km
Gold Hill	230 (2011)	2.3km
Crisman	186 (2011)	2.5km
Mountain Meadows	274 (2011)	3.2km
Sugarloaf	261 (2011)	4.3km

REF:Deposit:: LOVERING AND GODDARD, 1950, USGS P. P. 223, PL 23
Deposit:: CONSV. DIV. COMP. DATE, 10,62
Commodities (Major) - Gold
Development Status: Occurrence

Regions containing this locality

North America Plate	Tectonic Plate
Rocky Mountains, North America	Mountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

Mineral List

19 valid minerals.

Detailed Mineral List:

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Calaverite

Formula: AuTe₂

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Chalcopyrite

Formula: CuFeS₂

Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223

ⓘ Coloradoite

Formula: HgTe

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Galena

Formula: PbS

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Gold

Formula: Au

Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

Hessite

Ingram mine, Gold Hill District, Boulder Co., Colorado, USA

ⓘ Hessite

Formula: Ag₂Te

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Melonite

Formula: NiTe₂

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Muscovite var: Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Nagyágite

Formula: [Pb₃(Pb,Sb)₃S₆](Au,Te)₃

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Petzite

Formula: Ag₃AuTe₂

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Pyrargyrite

Formula: Ag₃SbS₃

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Pyrite

Formula: FeS₂

Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223

ⓘ Quartz

Formula: SiO₂

Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223

ⓘ Rhodochrosite

Formula: MnCO₃

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Sphalerite

Formula: ZnS

Reference: U.S. Geological Survey Professional Paper 223

ⓘ Sylvanite

Formula: (Au,Ag)₂Te₄

Reference: Minerals of Colorado (1997) E.B. Eckel; U.S. Geological Survey Professional Paper 223

ⓘ Tellurium

Formula: Te

Reference: Minerals of Colorado (1997) E.B. Eckel

ⓘ Tetrahedrite

Formula: Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S

Reference: U.S. Geological Survey Professional Paper 223

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Gold	1.AA.05	Au
ⓘ	Tellurium	1.CC.10	Te
Group 2 - Sulphides and Sulfosalts
ⓘ	Calaverite	2.EA.10	AuTe₂
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Coloradoite	2.CB.05a	HgTe
ⓘ	Galena	2.CD.10	PbS
ⓘ	Hessite	2.BA.60	Ag₂Te
ⓘ	Melonite	2.EA.20	NiTe₂
ⓘ	Nagyágite	2.HB.20a	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
ⓘ	Petzite	2.BA.75	Ag₃AuTe₂
ⓘ	Pyrargyrite	2.GA.05	Ag₃SbS₃
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Sylvanite	2.EA.05	(Au,Ag)₂Te₄
ⓘ	Tetrahedrite	2.GB.05	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Rhodochrosite	5.AB.05	MnCO₃
Group 9 - Silicates
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var: Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
ⓘ	Gold	1.1.1.1	Au
Semi-metals and non-metals
ⓘ	Tellurium	1.3.4.2	Te
Group 2 - SULFIDES
A_mB_nX_p, with (m+n):p = 2:1
ⓘ	Hessite	2.4.2.1	Ag₂Te
ⓘ	Petzite	2.4.3.3	Ag₃AuTe₂
A_mX_p, with m:p = 1:1
ⓘ	Coloradoite	2.8.2.5	HgTe
ⓘ	Galena	2.8.1.1	PbS
ⓘ	Sphalerite	2.8.2.1	ZnS
A_mB_nX_p, with (m+n):p = 1:1
ⓘ	Chalcopyrite	2.9.1.1	CuFeS₂
A_mB_nX_p, with (m+n):p = 2:3
ⓘ	Nagyágite	2.11.10.1	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
A_mB_nX_p, with (m+n):p = 1:2
ⓘ	Calaverite	2.12.13.2	AuTe₂
ⓘ	Melonite	2.12.14.1	NiTe₂
ⓘ	Pyrite	2.12.1.1	FeS₂
ⓘ	Sylvanite	2.12.13.3	(Au,Ag)₂Te₄
Group 3 - SULFOSALTS
3 <ø < 4
ⓘ	Tetrahedrite	3.3.6.1	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
ø = 3
ⓘ	Pyrargyrite	3.4.1.2	Ag₃SbS₃
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO₃)
ⓘ	Rhodochrosite	14.1.1.4	MnCO₃
AB(XO₃)₂
ⓘ	Ankerite	14.2.1.2	Ca(Fe²⁺,Mg)(CO₃)₂
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
ⓘ	Muscovite	71.2.2a.1	KAl₂(AlSi₃O₁₀)(OH)₂
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO₂ with [4] coordinated Si
ⓘ	Quartz	75.1.3.1	SiO₂
Unclassified Minerals, Mixtures, etc.
ⓘ	Muscovite var: Sericite	-	KAl₂(AlSi₃O₁₀)(OH)₂

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite (var: Sericite)	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Rhodochrosite	MnCO₃
O	Oxygen
O	ⓘ Quartz	SiO₂
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Rhodochrosite	MnCO₃
O	ⓘ Muscovite (var: Sericite)	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Al	Aluminium
Al	ⓘ Muscovite (var: Sericite)	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite (var: Sericite)	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
S	Sulfur
S	ⓘ Pyrargyrite	Ag₃SbS₃
S	ⓘ Nagyágite	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
S	ⓘ Pyrite	FeS₂
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Galena	PbS
S	ⓘ Tetrahedrite	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
S	ⓘ Sphalerite	ZnS
K	Potassium
K	ⓘ Muscovite (var: Sericite)	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mn	Manganese
Mn	ⓘ Rhodochrosite	MnCO₃
Fe	Iron
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Tetrahedrite	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ni	Nickel
Ni	ⓘ Melonite	NiTe₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Tetrahedrite	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
Zn	Zinc
Zn	ⓘ Tetrahedrite	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
Zn	ⓘ Sphalerite	ZnS
Ag	Silver
Ag	ⓘ Pyrargyrite	Ag₃SbS₃
Ag	ⓘ Hessite	Ag₂Te
Ag	ⓘ Sylvanite	(Au,Ag)₂Te₄
Ag	ⓘ Petzite	Ag₃AuTe₂
Sb	Antimony
Sb	ⓘ Pyrargyrite	Ag₃SbS₃
Sb	ⓘ Nagyágite	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
Sb	ⓘ Tetrahedrite	Cu₆Cu₄(Fe²⁺,Zn)₂Sb₄S₁₂S
Te	Tellurium
Te	ⓘ Melonite	NiTe₂
Te	ⓘ Hessite	Ag₂Te
Te	ⓘ Nagyágite	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
Te	ⓘ Sylvanite	(Au,Ag)₂Te₄
Te	ⓘ Tellurium	Te
Te	ⓘ Coloradoite	HgTe
Te	ⓘ Calaverite	AuTe₂
Te	ⓘ Petzite	Ag₃AuTe₂
Au	Gold
Au	ⓘ Gold	Au
Au	ⓘ Nagyágite	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
Au	ⓘ Sylvanite	(Au,Ag)₂Te₄
Au	ⓘ Calaverite	AuTe₂
Au	ⓘ Petzite	Ag₃AuTe₂
Hg	Mercury
Hg	ⓘ Coloradoite	HgTe
Pb	Lead
Pb	ⓘ Nagyágite	[Pb₃(Pb,Sb)₃S₆](Au,Te)₃
Pb	ⓘ Galena	PbS

References

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U.S. Geological Survey Professional Paper 223

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