Pontllyfni
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Fact sheet
Description: 

After a loud rumble was heard by residents, the Pontllyfni meteorite fell on April 14th 1931. A single stone weighing 157 g was recovered, the remainder probably having fallen into the sea.

Pontllyfni is near Pen-y-groes, Gwynedd, Wales.

The Pontlllyfni meteorite is classified as a Winonaite (S3) - a type of primitive achondrite. Such meteorites may contain relict chondrules. The chondrules are so indistinct that they are difficult to see. Look in PPL to see crystals of pyroxene (rotation 1) and olivine (rotation 2). View in reflected light to see a few grains of metallic iron (silvery grey in colour) and many more grains of the golden yellow sulphide mineral troilite.

Specimen: BM1975,M.6
Thin section: 

In Place
In Time
Location description: 
Pontllyfni, Wales
Accuracy:
Location precision: 
Moderate
Timescale:
Timescale: 
Hadean
Ma = Millions of years ago
In Focus
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Type:
Type: 
meteorite
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