Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Braunite

Formula: Mn²⁺Mn³⁺₆(SiO₄)O₈

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B. (2019) Pădurea Craiului Mountains: Vântului Cave (Wind Cave). In: Cave and Karst Systems of Romania, (2019) Springer, 544 pages, at pp. 405-417.

ⓘ Goethite

Formula: Fe³⁺O(OH)

Localities:

Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania
Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B. (2019) Pădurea Craiului Mountains: Vântului Cave (Wind Cave). In: Cave and Karst Systems of Romania, (2019) Springer, 544 pages, at pp. 405-417.

ⓘ Hematite

Formula: Fe₂O₃

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Hollandite

Formula: Ba(Mn⁴⁺₆Mn³⁺₂)O₁₆

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Kaolinite

Formula: Al₂(Si₂O₅)(OH)₄

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Pyrolusite

Formula: Mn⁴⁺O₂

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Quartz

Formula: SiO₂

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Spinel

Formula: MgAl₂O₄

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

ⓘ Todorokite

Formula: (Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O

Locality: Peștera Vântului (Wind Cave), Șuncuiuș clay mine, Pădurea Craiului Mountains, Bihor County, Romania

References:

Onac, B.P., Pedersen, R.B., Tysseland, M. (1997) Presence of rare-earth elements in black Ferromanganese coatings from Vântului Cave (Romania). Journal of Cave and Karst Studies, 59:3, 128-131.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Spinel	4.BB.05	MgAl₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Pyrolusite	4.DB.05	Mn⁴⁺O₂
ⓘ	Hollandite	4.DK.05a	Ba(Mn⁴⁺₆Mn³⁺₂)O₁₆
ⓘ	Todorokite	4.DK.10	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
ⓘ	Birnessite	4.FL.45	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 9 - Silicates
ⓘ	Braunite	9.AG.05	Mn²⁺Mn³⁺₆(SiO₄)O₈
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Birnessite	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
O	Oxygen
O	ⓘ Birnessite	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
O	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Hollandite	Ba(Mn₆⁴⁺Mn₂³⁺)O₁₆
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Pyrolusite	Mn⁴⁺O₂
O	ⓘ Quartz	SiO₂
O	ⓘ Spinel	MgAl₂O₄
O	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Na	Sodium
Na	ⓘ Birnessite	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
Na	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Mg	Magnesium
Mg	ⓘ Spinel	MgAl₂O₄
Mg	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Al	Aluminium
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Spinel	MgAl₂O₄
Al	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Si	Silicon
Si	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Quartz	SiO₂
S	Sulfur
S	ⓘ Gypsum	CaSO₄ · 2H₂O
K	Potassium
K	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Ca	Calcium
Ca	ⓘ Birnessite	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Mn	Manganese
Mn	ⓘ Birnessite	(Na,Ca)_0.5(Mn⁴⁺,Mn³⁺)₂O₄ · 1.5H₂O
Mn	ⓘ Braunite	Mn²⁺Mn₆³⁺(SiO₄)O₈
Mn	ⓘ Hollandite	Ba(Mn₆⁴⁺Mn₂³⁺)O₁₆
Mn	ⓘ Pyrolusite	Mn⁴⁺O₂
Mn	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Fe	Iron
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Hematite	Fe₂O₃
Sr	Strontium
Sr	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O
Ba	Barium
Ba	ⓘ Hollandite	Ba(Mn₆⁴⁺Mn₂³⁺)O₁₆
Ba	ⓘ Todorokite	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂ · 3-4H₂O

Localities in this Region

Romania

Bihor County
- Pădurea Craiului Mountains
  - Șuncuiuș clay mine
    - Peștera Vântului (Wind Cave)

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

Carpathian MountainsVolcanic Arc

EuropeContinent

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List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

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