The Shergotty meteorite is the first example of the shergottite Mars meteorite family. It was a 5 kilogram Martian meteorite which fell to Earth at shergotty (now sherghati), in the Gaya district, Bihar, India on the 25 August 1865, and was retrieved by witnesses almost immediately. Radiometric dating indicates and it solidfied from a volcanic magma about 4.1 billion years ago. It is composed mostly of pyroxene and is thought to have undergone pre terrestrial aqueous alteration for several centuries.
The shergotties appear to have crystallised as recently as 180 million years ago, which is a suprisingly young age considering how ancient the majority of the surface of Mars appears to be, and the small size of Mars itself. Because of this, some have advocated the idea that the shergottite are much older than this. This "Shergottite Age Paradox" remains unsolved and is still an area of active research and debate.
- Dimensions: 27 mm x 27 mm x 18 mm.
- Genuine meteorite.
- This item includes an information card about the meteorite.
- A certificate of authenticity is included with this item.
This meteorite requires special care - due to its high iron content, exposure to water and other chemicals, such as cleaning products or aerosols, may cause the meteorite to rust over time. If you polish the meteorite, use a dry cloth only, or an air duster that does not contain any disinfectant or other chemicals.