Diogenite Vesta, NWA 7831

209 / $249

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The meteorite reached Earth after the fall of 2 large bodies on the south pole of the asteroid Vesta. It ejected part of this asteroid into space, which travelled to Earth. One of the bodies fell about 2 billion years ago and the other about 1 billion years ago. They formed craters about 400 and 500 km in size, occupying most of the southern hemisphere of the asteroid Vesta.

This meteorite was found on earth in 2013 in a very limited amount of about 20 kg.

The fact that the diogenite NWA 7831 comes from the asteroid Vesta (about 500 km in diameter) was also confirmed by the Dawn spacecraft in 2011 and 2012, when it approached this asteroid and examined it for several months to find that it exactly matches its composition and visible and infrared spectrum.

Weight 27.2 g

 

Formula:

pyroxene    CaMgSi2O6 – CaFeSi2O6

olivine        (Mg, Fe)2SiO4)

plagioclase NaAlSi3O8 – CaAl2Si2O8

Group:,
Group:

Meteorites and tektites

Country:

Dimensions:

3.5 x 3 x 2 cm

Color:

,

Zodiac:

Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces

Zodiac:, , , , , , , , , , , ,
Categories: Universe,
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Description

Diogenites are very rare meteorites belonging to the group of achondrites. In the total amount of meteorites fallen on Earth are represented by about 3-4%. They are composed mainly of pyroxene crystals, olivines and plagioclase and come in most cases from the asteroid (protoplanet) Vesta. It is the 3rd largest and 2nd heaviest asteroid in the solar system.

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Additional information

Formula:

pyroxene    CaMgSi2O6 – CaFeSi2O6

olivine        (Mg, Fe)2SiO4)

plagioclase NaAlSi3O8 – CaAl2Si2O8

Group:,
Group:

Meteorites and tektites

Country:

Dimensions:

3.5 x 3 x 2 cm

Color:

,

Zodiac:

Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces

Zodiac:, , , , , , , , , , , ,
Categories: Universe,