Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Anorthite

Formula: Ca(Al₂Si₂O₈)

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Anorthite var. Labradorite

Formula: (Ca,Na)[Al(Al,Si)Si₂O₈]

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Barrerite

Formula: Na₂(Si₇Al₂)O₁₈ · 6H₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Calcite

Formula: CaCO₃

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University. Li, C., Shen, P., Zhao, Y., Li, P., Zhang, L., & Pan, H. (2022). Mineral chemistry of chlorite in different geologic environments and its implications for porphyry Cu±Au±Mo deposits. Ore Geology Reviews, 105112.

ⓘ 'Chlorite Group'

ⓘ 'Clinoptilolite'

Formula: M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'Clinopyroxene Subgroup'

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Corrensite

Formula: (Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O

Reference: Li, C., Shen, P., Zhao, Y., Li, P., Zhang, L., & Pan, H. (2022). Mineral chemistry of chlorite in different geologic environments and its implications for porphyry Cu±Au±Mo deposits. Ore Geology Reviews, 105112.

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

ⓘ 'Fayalite-Forsterite Series'

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Fluorite

Formula: CaF₂

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'Heulandite'

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'K Feldspar'

Formula: KAlSi₃O₈

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi₃O₈

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

ⓘ Mordenite

Formula: (Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Muscovite var. Illite

Formula: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

ⓘ Pyrite

Formula: FeS₂

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Quartz

Formula: SiO₂

ⓘ 'Smectite Group'

Formula: A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

ⓘ Stellerite

Formula: Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ 'Stilbite Subgroup'

Formula: M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

Reference: Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

ⓘ Vermiculite

Formula: Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O

ⓘ Wairakite

Formula: Ca(Al₂Si₄O₁₂) · 2H₂O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Anhydrite	7.AD.30	CaSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Anorthite	9.FA.35	Ca(Al₂Si₂O₈)
ⓘ	var. Labradorite	9.FA.35	(Ca,Na)[Al(Al,Si)Si₂O₈]
ⓘ	Barrerite	9.GE.15	Na₂(Si₇Al₂)O₁₈ · 6H₂O
ⓘ	Corrensite	9.EC.60	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Mordenite	9.GD.35	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Stellerite	9.GE.15	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
ⓘ	Vermiculite	9.EC.50	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
ⓘ	Wairakite	9.GB.05	Ca(Al₂Si₄O₁₂) · 2H₂O
Unclassified Minerals, Rocks, etc.
ⓘ	'Chlorite Group'	-
ⓘ	'Clinoptilolite'	-	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
ⓘ	'Clinopyroxene Subgroup'	-
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Heulandite'	-
ⓘ	'K Feldspar'	-	KAlSi₃O₈
ⓘ	'var. Adularia'	-	KAlSi₃O₈
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Smectite Group'	-	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
H	ⓘ Barrerite	Na₂(Si₇Al₂)O₁₈ · 6H₂O
H	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Clinoptilolite	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
H	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Anhydrite	CaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Anorthite var. Labradorite	(Ca,Na)[Al(Al,Si)Si₂O₈]
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
O	ⓘ Barrerite	Na₂(Si₇Al₂)O₁₈ · 6H₂O
O	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Clinoptilolite	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
O	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Anorthite	Ca(Al₂Si₂O₈)
O	ⓘ K Feldspar	KAlSi₃O₈
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Anorthite var. Labradorite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Na	ⓘ Barrerite	Na₂(Si₇Al₂)O₁₈ · 6H₂O
Na	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Mg	Magnesium
Mg	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Mg	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
Al	Aluminium
Al	ⓘ Anorthite var. Labradorite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Al	ⓘ Barrerite	Na₂(Si₇Al₂)O₁₈ · 6H₂O
Al	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Al	ⓘ Clinoptilolite	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
Al	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Al	ⓘ K Feldspar	KAlSi₃O₈
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
Si	Silicon
Si	ⓘ Anorthite var. Labradorite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Si	ⓘ Barrerite	Na₂(Si₇Al₂)O₁₈ · 6H₂O
Si	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	ⓘ Clinoptilolite	M_3-6(Si₃₀Al₆)O₇₂ · 20H₂O
Si	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Si	ⓘ K Feldspar	KAlSi₃O₈
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O
S	Sulfur
S	ⓘ Anhydrite	CaSO₄
S	ⓘ Pyrite	FeS₂
S	ⓘ Gypsum	CaSO₄ · 2H₂O
K	Potassium
K	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
K	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ K Feldspar	KAlSi₃O₈
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Anhydrite	CaSO₄
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Anorthite var. Labradorite	(Ca,Na)[Al(Al,Si)Si₂O₈]
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Ca	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Ca	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Fe	Iron
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Fe	ⓘ Corrensite	(Mg,Fe)₉((Si,Al)₈O₂₀)(OH)₁₀ · nH₂O

References

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Gebregziabher, Z. (1998). Geology and hydrothermal alteration in wells TD-5 and TD-6, Tendaho geothermal field, Ethiopia. United Nations University.

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Tendaho geothermal field, Afar Region, EthiopiaiRegional Level TypesTendaho geothermal fieldGeothermal Field Afar RegionRegion EthiopiaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

References

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