The Nesjavellir Geothermal Power Station (Icelandic: Nesjavallavirkjun, Icelandic pronunciation: [ˈnɛːsjaˌvatlaˌvɪr̥cʏn]) is the second-largest geothermal power station in Iceland. The facility is located 177 m (ca. 581 ft) above sea level in the southwestern part of the country, near Þingvellir National Park and the Hengill mountain range, about 30 km east of central Reykjavík. The power station is owned and operated by ON Power.

Plans for utilizing the Nesjavellir [ˈnɛːsjaˌvɛtlɪr̥] area for geothermal power and water heating began in 1947, when boreholes were drilled to evaluate the area's potential for power generation. Research continued from 1965 to 1986. In 1987, construction of the plant began, and the cornerstone was laid in May 1990. The station produces approximately 120 MW of electrical power; it also delivers around 1,100 litres (290 US gal) of hot water 82–85 °C (180–185 °F) per second – with a heating capacity of 150 MW, serving the space heating and hot water needs of the Capital Region.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

10 valid minerals.

Detailed Mineral List:

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Calcite

Formula: CaCO₃

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ 'Chlorite Group'

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Epidote

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

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Gyrolite

Formula: NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ 'Heulandite Subgroup'

Formula: (Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Mordenite

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

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Quartz

Formula: SiO₂

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Reyerite

Formula: (Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ 'Smectite Group'

Formula: A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ 'Stilbite Subgroup'

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

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

ⓘ Wairakite

Formula: Ca(Al₂Si₄O₁₂) · 2H₂O

References:

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 9 - Silicates
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Gyrolite	9.EE.30	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
ⓘ	Reyerite	9.EE.35	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
ⓘ	Wairakite	9.GB.05	Ca(Al₂Si₄O₁₂) · 2H₂O
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Mordenite	9.GD.35	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Heulandite Subgroup'	-	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
ⓘ	'Stilbite Subgroup'	-	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
ⓘ	'Smectite Group'	-	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
H	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
H	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
H	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
H	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Calcite	CaCO₃
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
O	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
O	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
O	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
O	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
Na	Sodium
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
Na	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Na	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Na	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
Al	Aluminium
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
Al	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
Al	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Al	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Si	Silicon
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
Si	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
Si	ⓘ Stilbite Subgroup	M_6-7[Al_8-9Si_27-28O₇₂] · nH₂O
Si	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
K	Potassium
K	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
K	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
K	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Gyrolite	NaCa₁₆Si₂₃AlO₆₀(OH)₈ · 14H₂O
Ca	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆ · 28H₂O
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Reyerite	(Na,K)₂Ca₁₄(Si,Al)₂₄O₅₈(OH)₈ · 6H₂O
Ca	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Fe	Iron
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Nesjavellir_Geothermal_Power_Station
Wikidata ID:	Q693330

Other Regions, Features and Areas containing this locality

Atlantic Ocean

Mid-Atlantic Ridge complexMid-Ocean Ridge

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West Iceland RiftNarrow Rift

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References

orkustofnun.is (n.d.) https://orkustofnun.is/gogn/Skyrslur/1976/OS-JHD-7649.pdf

Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284.

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