Eldjarn (1978) reports the find of milarite and phenakite and other minerals in cavities in syenite (nordmarkite) found at the sporting stadion and building-sites near Rødtvedt school in the 1960ies.

Rødtvet saw completely different out, with much less houses and roads. At an aerial picture of 1937 there was a lot of blasting done at the given coordinates. Also here are signs of blasting:
59.95802634120155,10.847073197364807
59.9572313906172,10.848596692085266
59.956707679642975,10.846703052520754
These places are completely reclaimed by nature, and it seems to be difficult to expect anything to be found. However, at the given coordinates there is still an exposure of rock, and easily accessible since it is near a sporting stadium.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Albite

ⓘ 'Heulandite Subgroup'

10 valid minerals.

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

Knut Eldjarn Collection

ⓘ Allanite-(Ce)

Formula: (CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)

References:

Knut Eldjarn Collection

ⓘ Epidote

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

References:

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

ⓘ Fluorite

Formula: CaF₂

References:

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

ⓘ Harmotome

Formula: Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O

References:

Knut Eldjarn Collection

ⓘ Hedenbergite

Formula: CaFe²⁺Si₂O₆

References:

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

ⓘ 'Heulandite Subgroup'

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

References:

Knut Eldjarn Collection

ⓘ Milarite

Formula: K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]

References:

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

ⓘ Phenakite

Formula: Be₂SiO₄

Habit: 1-2mm large xls

References:

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

ⓘ Quartz

Formula: SiO₂

References:

Knut Eldjarn Collection

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

Knut Eldjarn Collection

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
Group 9 - Silicates
ⓘ	Phenakite	9.AA.05	Be₂SiO₄
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Allanite-(Ce)	9.BG.05b	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Milarite	9.CM.05	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
ⓘ	Hedenbergite	9.DA.15	CaFe²⁺Si₂O₆
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Harmotome	9.GC.10	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
Unclassified
ⓘ	'Heulandite Subgroup'	-	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
H	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
H	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Be	Beryllium
Be	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Be	ⓘ Phenakite	Be₂SiO₄
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
O	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
O	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
O	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
O	ⓘ Phenakite	Be₂SiO₄
O	ⓘ Quartz	SiO₂
O	ⓘ Titanite	CaTi(SiO₄)O
F	Fluorine
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
Al	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Al	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
Si	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Si	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Si	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Si	ⓘ Phenakite	Be₂SiO₄
Si	ⓘ Quartz	SiO₂
Si	ⓘ Titanite	CaTi(SiO₄)O
K	Potassium
K	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
K	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Ca	Calcium
Ca	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Ca	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Ca	ⓘ Milarite	K(◻H₂O)Ca₂(Be₂Al)[Si₁₂O₃₀]
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ti	Titanium
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Hedenbergite	CaFe²⁺Si₂O₆
Ba	Barium
Ba	ⓘ Harmotome	Ba₂(Si₁₂Al₄)O₃₂ · 12H₂O
Ce	Cerium
Ce	ⓘ Allanite-(Ce)	(CaCe)(AlAlFe²⁺)O[Si₂O₇][SiO₄](OH)

Other Regions, Features and Areas containing this locality

Baltic Shield (Fennoscandian Shield)Shield

Eurasian PlateTectonic Plate

Baltic Shield
- Sveconorwegian BeltShield

EuropeContinent

Norway

Oslo Volcanic ProvinceVolcanic Province

ScandinaviaRegion

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References

Eldjarn, Knut (1978) Mineraler i Norge- Fenakitt. NAGS-NYTT, 5 (3) 19-20

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Rødtvedt, Grorud, Oslo, NorwayiRegional Level TypesRødtvedt- not defined - GrorudBorough OsloCounty NorwayCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Rødtvedt, Grorud, Oslo, Norway i
Regional Level Types
Rødtvedt - not defined -
Grorud Borough
Oslo County
Norway Country