Club	Location	Distance
Vestfold Geologiforening	Holmestrand	4km
Follo Geologiforening	Ås	36km
Buskerud Geologiforening	Solbergelva	37km
Fredrikstad og Omegn Geologiforening	Kråkerøy	46km

Mindat Locality ID:

32657

Long-form identifier:

mindat:1:2:32657:6

GUID (UUID V4):

4eb97bdb-e3c2-4b2e-b3d8-35bb988b75e2

Other/historical names associated with this locality:

Brekkekleiv; Valtersborg; Watersborg

Other Languages:

Norwegian:

Brekketunnelen, Helland, Holmestrand, Vestfold, Norge

Amygdales in basalt (B1) exposed during road and tunnel construction (new alignment of E 18) in 1997-2000. Locality no longer accessible (heavy traffic!). The minerals listed here were found both in the very tunnel and the area north of the tunnel (including the areas called "dagsone nord" ["Dayzone North"] and Brekkekleiva).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

13 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

ⓘ Basalt

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Andersen, Frode, Bergstrøm, Trond, Larsen, Alf Olav, Larsen, Stig, Nordrum, Fred Steinar (2000) Mineralfunn langs ny veitrasé for E-18 i Nordre Vestfold, del 2. STEIN. Magasin for populærgeologi, 27 (3) 4-15

Nordrum, Fred Steinar, Larsen, Stig, Bergstrøm, Trond Owe, Larsen, Alf Olav (2000) Mineralfunn langs ny vegtrasé for E-18 i Nordre Vestfold. Del 2: Strekningen fra Kjeksrød i Holmestrand til Kopstad i Våle. Norsk Bergverksmuseum Skrift, 17. 26-31

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Chrysocolla

Formula: Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

References:

ⓘ Copper

Formula: Cu

References:

ⓘ Cuprite

Formula: Cu₂O

References:

ⓘ Epidote

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

References:

ⓘ Fluorite

Formula: CaF₂

References:

ⓘ Heulandite-Ca

Formula: (Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O

Description: a strontian heulandite-Ca

References:

Nordrum, F. S.

Nordrum, Fred Steinar, Larsen, Alf Olav, Erambert, Muriel (2003) Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum Skrift, 25. 51-62

Nordrum, Fred Steinar, Larsen, Alf Olav, Erambert, Muriel (2005) Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30. 98-112

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

References:

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

References:

ⓘ Pyrite

Formula: FeS₂

References:

ⓘ Quartz

Formula: SiO₂

References:

ⓘ Quartz var. Amethyst

Formula: SiO₂

References:

Gallery:

CaCO₃ⓘ Calcite

Cu₂Oⓘ Cuprite

(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂Oⓘ Heulandite-Ca

Ca₂Al₂Si₃O₁₀(OH)₂ⓘ Prehnite

SiO₂ⓘ Quartz

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Copper	1.AA.05	Cu
Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Cuprite	4.AA.10	Cu₂O
ⓘ	Quartz var. Amethyst	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 9 - Silicates
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Chrysocolla	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Heulandite-Ca	9.GE.05	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Quartz var. Amethyst	SiO₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Cuprite	Cu₂O
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Quartz var. Amethyst	SiO₂
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
S	Sulfur
S	ⓘ Pyrite	FeS₂
Ca	Calcium
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Heulandite-Ca	(Ca,Na)₅(Si₂₇Al₉)O₇₂ · 26H₂O
Fe	Iron
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Cuprite	Cu₂O
Cu	ⓘ Copper	Cu
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

EuropeContinent

Norway

Oslo Volcanic ProvinceVolcanic Province
Vestfold
- ⭔ReMunicipality
⭔Vestfold og Telemark (2020-2023)County

ScandinaviaRegion

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References

Nordrum, Fred Steinar, Larsen, Alf Olav, Erambert, Muriel (2003) Minerals of the heulandite series in Norway - a progress report. Norsk Bergverksmuseum Skrift, 25. 51-62

Larsen, Knut Edvard, Larsen, Stig (2005) Mineralforekomster på Vestfold lavaplatå. Del 2: I B1-nivåets basalter [Mineral localities in the Vestfold lava plateau. Part II: In the B1 basalts]. Norsk Bergverksmuseum Skrift, 30. 41-57

Nordrum, Fred Steinar, Larsen, Alf Olav, Erambert, Muriel (2005) Minerals of the heulandite series in Norway- additional data and summary. Norsk Bergverksmuseum Skrift, 30. 98-112 with analysis of heulandite-Ca from Valtersborg = Brekke Tunnel

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