A white earthy mineral shown to be "basaluminite" [felsöbányaite] was described from a small cavity in black shale, from a small roadside pit on the slopes of Moel Goedog.
Although the first recorded account of this mineral in Wales, more recent investigations into the post-mining mineralogy of Parys Mountain on Anglesey have now produced a second occurrence.

NB The name felsöbányaite, described by Kenngott in 1853, has priority over "basaluminite" which was named in 1948, but was subsequently found to be the same species.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Felsőbányaite

1 valid mineral.

Detailed Mineral List:

ⓘ Felsőbányaite

Formula: Al₄(SO₄)(OH)₁₀ · 4H₂O

References:

Ball, D.F., 1969. Basaluminite from Cambrian rocks near Harlech. Mineralogical Magazine, 37, 291-293.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Felsőbányaite	7.DD.05	Al₄(SO₄)(OH)₁₀ · 4H₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
O	Oxygen
O	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
Al	Aluminium
Al	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O
S	Sulfur
S	ⓘ Felsőbányaite	Al₄(SO₄)(OH)₁₀ · 4H₂O

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands

Eurasian PlateTectonic Plate

AvaloniaVolcanic Arc

EuropeContinent

Wales
- Cambrian MountainsMountain Range
- Snowdonia National ParkNational Park

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References

Ball, D.F., 1969. Basaluminite from Cambrian rocks near Harlech. Mineralogical Magazine, 37, 291-293.

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