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Borgenåsen, Asker, Akershus, Norwayi
Regional Level Types
BorgenåsenUrban area
AskerMunicipality
AkershusCounty
NorwayCountry

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Latitude & Longitude (WGS84):
59° North , 10° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~10km
Locality type:
Other Languages:
Norwegian:
Borgenåsen, Asker, Akershus, Norge


Miarolitic cavities in Drammens granite (biotite granite) close to the contact with cambrosilurian sediments altered to hornfels. Many cavities were exposed during a period of house and road constructions in the 1970s.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
ScandinaviaRegion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


10 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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: Knut Eldjarn colection
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Knut Eldjarn collection
Anatase
Formula: TiO2
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Knut Eldjarn collection
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Knut Eldjarn photo & collection
'Dravite-Uvite Series'
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
'Feldspar Group'
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Knut Eldjarn collection
'Muscovite-1M'
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Opal
Formula: SiO2 · nH2O
Reference: Knut Eldjarn collection
Orthoclase
Formula: K(AlSi3O8)
Reference: Knut Eldjarn photo and collection
Quartz
Formula: SiO2
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Quartz var: Amethyst
Formula: SiO2
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151
'Stilbite subgroup'
Reference: Knut Eldjarn collection
'Uvite Series'
Formula: Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Colour: White
Description: Analysis of the light colored tourmaline has showed a composition of 69 % uvite and 30% dravite
Reference: Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Orthoclase9.FA.30K(AlSi3O8)
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Uvite Series'9..Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Unclassified Minerals, Rocks, etc.
'Dravite-Uvite Series'-
'Feldspar Group'-
'Muscovite-1M'-
'Stilbite subgroup'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
AX2
Anatase4.4.4.1TiO2
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
'Uvite Series'61.3.1.3Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Dravite-Uvite Series'-
'Feldspar Group'-
'Muscovite-1M'-
Quartz
var: Amethyst
-SiO2
var: Smoky Quartz-SiO2
'Stilbite subgroup'-

List of minerals for each chemical element

HHydrogen
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H LaumontiteCaAl2Si4O12 · 4H2O
H OpalSiO2 · nH2O
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H ClinochloreMg5Al(AlSi3O10)(OH)8
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O QuartzSiO2
O AnataseTiO2
O Quartz (var: Smoky Quartz)SiO2
O Quartz (var: Amethyst)SiO2
O OrthoclaseK(AlSi3O8)
O AlbiteNa(AlSi3O8)
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O LaumontiteCaAl2Si4O12 · 4H2O
O OpalSiO2 · nH2O
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O ClinochloreMg5Al(AlSi3O10)(OH)8
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
AlAluminium
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al OrthoclaseK(AlSi3O8)
Al AlbiteNa(AlSi3O8)
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Al LaumontiteCaAl2Si4O12 · 4H2O
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si QuartzSiO2
Si Quartz (var: Smoky Quartz)SiO2
Si Quartz (var: Amethyst)SiO2
Si OrthoclaseK(AlSi3O8)
Si AlbiteNa(AlSi3O8)
Si DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Si LaumontiteCaAl2Si4O12 · 4H2O
Si OpalSiO2 · nH2O
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si ClinochloreMg5Al(AlSi3O10)(OH)8
KPotassium
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
TiTitanium
Ti AnataseTiO2
FeIron
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Eldjarn, K. (1994): Uvitt-dravitt fra Borgenåsen, Asker. STEIN 21 (2), 148-151


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