Click the microscope button to view a thin section for this sample.
Click the microscope button to view a thin section for this sample.
Click the object button to view an object rotation for this sample.

Fact sheet


The Mooresfort meteorite is a H5 chondrite that fell near Cashel, County Tipperary, Ireland in August 1810. Its total mass is 3.52 kg. Sedgwick Museum holds three hand specimens (A: 231.50 gm, B: 127.50 gm and C: 93.95 gm), some small fragments (total 4.00 gm) and three polished mounts.

The Mooresfort meteorite is classified as an H5 chondritic meteorite, meaning it has a high iron content (12-21%) and distinct chondrules (olivine and pyroxene mainly). In thin section both rotations show chondrules, although at low magnification the dark nature of the section makes these difficult to see. Chondrules are thought to have formed from the condensation of hot gases in the solar system around 4.6 billion years ago. The reflected light view is dominated with metallic iron (silvery grey) and a lesser amount of troilite (golden yellow).

See also:

Specimen: Sedgwick Museum
Thin section: Sedgwick Museum

Additional images
  • Mooresfort A - width 4.75 cm
  • Mooresfort A - width 7 cm
  • Mooresfort A - width 5.5 cm
  • Mooresfort A - width 7 cm
  • Mooresfort A cut surface - width 3.5 cm
  • Mooresfort A - width 7 cm
  • Mooresfort A - width 2.4 cm
  • Mooresfort A - width 6.5 cm
52.47107, -8.151855
About this collection

This Collection consists of meteorites that have fallen in Great Britain and Ireland and which are now preserved in museum collections. We have also included samples of the two known meteorite impact deposits in the UK.

The Natural History Museum in London offers more information about meteorites and meteorite categories; there is more information about its meteorite collections here.

Sample details

Rock-forming mineral
metallic iron
Category guide  
Category Guide
Refers to any word or phrase that appears in the individual rock names. Names are generally descriptive; they allow users to search for broad terms like ‘granite’ as well as more specific names such as ‘breccia’. However, the adjacent descriptions of the specimens captures a wider range of general words and phrases and is a more powerful search tool.
Refers to any word or phrase that appears anywhere in the descriptions of the specimens
Accessory minerals
Minerals that occur in very low abundance in a rock. They are usually not visible with the naked eye and contribute perhapssver, they often dominate the rare elements such as platinum group metals.
Rock-forming minerals
Minerals that make up the bulk of all rock samples and are also the ones used in rock classi?cation.
Selecting one or more period, for example 'Jurassic'.
A term used to group together related samples that are not already gathered into a single Collection. For instance, there is a ‘SW England granites’ theme that includes such rock types as granite, hydrothermal breccia, skarn and vein samples.
A general term used to label a rock sample. It is a useful way of grouping similar samples throughout a collection. Category names are often, but not exclusively, common rock names (e.g. granite, basalt, dolerite, gabbro, greisen, skarn, gneiss, amphibolite, limestone, sandstone).
The owner of the sample that appears in the collection. For example, NASA owns all the samples that appear in the Moon Rocks collection
We would like to thank the following for the use of this sample: