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Winona

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description Winona Overview

Winona is a meteorite found near Winona, Arizona, and is the type specimen of the winonaites, a group of primitive achondrites. Winonaites contain silicate minerals mixed with metal and sulfide and show evidence of heating, metamorphism, and partial melting on their parent asteroid. Their mineralogy and oxygen-isotope composition also connect them with silicate inclusions found in IAB iron meteorites.

help Winona FAQ

What makes the Winona meteorite scientifically important?

Winona is the type specimen for a unique group of primitive achondrites known as winonaites. This means all similar meteorites discovered afterward are compared to this specific meteorite.

Where was the Winona meteorite discovered?

The meteorite was found near the town of Winona in Arizona. It was originally discovered in an archaeological context within a Native American structure.

What is the mineral composition of a winonaite meteorite?

Winonaites contain a mix of silicate minerals along with metal and sulfide. They also show clear evidence of heating, metamorphism, and partial melting that occurred on their parent asteroid.

What kind of parent body did the Winona meteorite come from?

The meteorite originated from a parent asteroid that underwent significant thermal alteration. The evidence of heating and partial melting indicates that the parent body was sufficiently large to experience internal differentiation.

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