The Fjällbacka site is a deep drilling project (the HDR geothermal research site) to do research on granite in the Swedish bedrock for extraction of geothermal energy from "dry" rocks. Two drill holes were sunk to a depth of 500m and fluids were circulated between the holes, studying movement of elements in the rock under varying conditions. Active between 1988 and 1995.

A close by drainage tunnel at 60m depth was also used to study rocks.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

19 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ 'Allanite Group'

Formula: {A1²⁺REE³⁺}{M1³⁺M2³⁺M3²⁺}(Si₂O₇)(SiO₄)O(OH)

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Anatase

Formula: TiO₂

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Calcite

Formula: CaCO₃

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ 'Chlorite Group'

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Epidote

Formula: {Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.; Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Fluorite

Formula: CaF₂

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Hematite

Formula: Fe₂O₃

ⓘ Hematite var. Martite

Formula: Fe₂O₃

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

ⓘ Microcline

Formula: K(AlSi₃O₈)

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ 'Monazite'

Formula: REE(PO₄)

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Muscovite var. Illite

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

ⓘ 'Pumpellyite Subgroup'

Formula: Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

ⓘ Quartz

Formula: SiO₂

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Rutile

Formula: TiO₂

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Siderite

Formula: FeCO₃

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Thorite

Formula: Th(SiO₄)

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Titanite

Formula: CaTi(SiO₄)O

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

ⓘ Titanite var. Grothite

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Xenotime-(Y)

Formula: Y(PO₄)

Reference: Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

ⓘ Zircon

Formula: Zr(SiO₄)

Reference: Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Anatase	4.DD.05	TiO₂
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	var. Martite	4.CB.05	Fe₂O₃
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Rutile	4.DB.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
ⓘ	Xenotime-(Y)	8.AD.35	Y(PO₄)
Group 9 - Silicates
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Epidote	9.BG.05a	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	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
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	var. Grothite	9.AG.15	CaTi(SiO₄)O
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
Unclassified Minerals, Rocks, etc.
ⓘ	'Allanite Group'	-	{A1²⁺REE³⁺}{M1³⁺M2³⁺M3²⁺}(Si₂O₇)(SiO₄)O(OH)
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Monazite'	-	REE(PO₄)
ⓘ	'Pumpellyite Subgroup'	-	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
H	ⓘ Allanite Group	{A1²⁺REE³⁺}{M1³⁺M2³⁺M3²⁺}(Si₂O₇)(SiO₄)O(OH)
H	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Siderite	FeCO₃
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Anatase	TiO₂
O	ⓘ Monazite	REE(PO₄)
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Xenotime-(Y)	Y(PO₄)
O	ⓘ Quartz	SiO₂
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Siderite	FeCO₃
O	ⓘ Calcite	CaCO₃
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Hematite var. Martite	Fe₂O₃
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
O	ⓘ Allanite Group	{A1²⁺REE³⁺}{M1³⁺M2³⁺M3²⁺}(Si₂O₇)(SiO₄)O(OH)
O	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
O	ⓘ Rutile	TiO₂
F	Fluorine
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	Aluminium
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Si	Silicon
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Si	ⓘ Allanite Group	{A1²⁺REE³⁺}{M1³⁺M2³⁺M3²⁺}(Si₂O₇)(SiO₄)O(OH)
Si	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
P	Phosphorus
P	ⓘ Monazite	REE(PO₄)
P	ⓘ Xenotime-(Y)	Y(PO₄)
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
K	Potassium
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Ca	ⓘ Fluorite	CaF₂
Ti	Titanium
Ti	ⓘ Anatase	TiO₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ti	ⓘ Rutile	TiO₂
Fe	Iron
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Hematite var. Martite	Fe₂O₃
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Fe	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Y	Yttrium
Y	ⓘ Xenotime-(Y)	Y(PO₄)
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Wallroth, T., Eliasson, T., & Sundquist, U. (1999). Hot dry rock research experiments at Fjällbacka, Sweden. Geothermics, 28(4-5), 617-625.

Petersson, J., Fallick, A. E., Broman, C., & Eliasson, T. (2014). Imprints of multiple fluid regimes on episyenites in the Bohus granite, Sweden. Lithos, 196, 99-114.

Petersson, J., Whitehouse, M.J., Eliasson, T., (2001). Ion microprobe U–Pb dating of hydrothermal xenotime froman episyenite: evidence for rift-related reactivation. Chemical Geology 175, 703–712.

Petersson, J., & Eliasson, T. (1997). Mineral evolution and element mobility during episyenitization. Lithos, 42, 123-146.

Chem. Geol. 69, 49-57

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield

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