What is the biggest difference between lunar meteorites and Earth breccia

Lunar meteorites have molten crusts, molten streamlines, blister craters, while Earth breccia does not have these characteristics.

The inside is of high purity and free of impurities, the whole body is covered with dense small bubbles, there is a thaw shell on the outside, there are flow lines on the melt shell, and sometimes there will be large air marks on the outside and under the thaw shell. A meteorite is a stony, iron-like or mixed material of unburned cosmic meteors outside the Earth that break away from their original orbits or scatter into fragments on the surface of the Earth or other planets, also known as "meteorites". Most meteorites come from the asteroid belt, and a small number come from the Moon and Mars.

Meteorites are usually divided into three categories according to the level of iron-nickel metal content in their interior: stony meteorites, iron meteorites, and stony-iron meteorites. The iron-nickel metal content in stony meteorites is less than or equal to 30%; The iron-nickel content of stony-iron meteorites is between 30% and 65%; Iron meteorites contain 95% or more iron-nickel metal.

Collisions between small celestial bodies often change the structure and structure of their interiors. For example, chondrites can be changed to nochondrites, and of course, nodulares can be transformed into chondrites. A small celestial body falling to the ground is a meteorite.

When it passes through the earth's atmosphere, it produces strong friction with the air, and under the action of high pressure and high temperature, its appearance will often melt and deteriorate, and after cooling, a layer of molten crust with a thickness of about one millimeter will be born on the surface of the meteorite. Generally speaking, there are two kinds of molten crusts of the same meteorite, one is the molten crust produced by the collision between asteroids in space, and the other is the molten crust produced by entering the Earth's atmosphere and rubbing against the air. References: Meteorites.

Meteorite [cited 2017-12-19].

Lunar meteorites are divided into two categories: igneous rocks and sedimentary rocks, and lunar basalt is one of the main rocks that make up the moon, with black colors, white, dark purple, purple red, red, mixed colors, etc. Speckled structures and almond structures are common, and biotite and phlogopite are present. Pyrite, chalcopyrite, croistobaltane, and unclear minerals are also present Tabular or oblate columnar single crystals are often white, and graphite with a hexagonal crystal structure is common in meteorites with tabular single crystals.

Lunar meteorites have the characteristics of breccia plagioclase, which is an important scientific basis for confirming lunar meteorites. Some of the minerals most commonly found on the Earth's surface are rare or never found in lunar samples. They are:

Quartz, calcite, magnetite, hematite, mica, amphibole, and most sulfides. A lunar meteorite is a meteoroid that hits the moon and rocks pop off the moon and are captured by the Earth's gravitational field and fall to the Earth's moon rocks. All lunar meteorites look like some species of Earth rocks, and the characteristics of the lunar meteorite texture are different from any type of rock or other types of meteorites, and Earth rocks and other types of meteorites are melted crusts without blisters.

Some lunar meteorites are almost immediately recognizable because they have highly blistered fusion crusts. Some moon meteorites are melted crusts without blisters. Moon meteorites contain much smaller metals than common chondrites, with iron content well below 1.

As a result, they are faintly magnetic at best. It does not contain a high concentration of nickel. In addition, they have a density similar to that of terrestrial rocks; Since the moon is still in the sky.

Only the surface part that was knocked off can be dropped. Like Earth, dense materials such as iron** are found in the deeper parts of the planet. It is not easy to float down.

This is the lunar plagioclase breccia meteorite that I found, and you can clearly see that it contains a large amount of plagioclase and a small amount of olivine.

The same meteorite, the same material, both plagioclase and olivine have changed after a strong impact.

Lunar basalt meteorite: (YAMATO983885) plagioclase (double-mineralized clastic rock), Yuebeiling dry soil angular conglomerate.

The yamato983885 lunar meteorite was discovered on January 11, 1999 on the ice near the Yamato Mountains in Antarctica, the weight of the meteorite is: grams, thin yellow-green molten crust, the meteorite can be observed white and gray detrital angular reed gravel, white plagioclase, dark pyroxene fragments embedded in a fine-grained dark matrix, the meteorite consists of a large number of detrital breccia and mineral fragments that are embedded in a dark matrix, the detritals are mainly mono-ore and multi-ore types, and glass pellets，（kaidenandkojima、2002；2003；Arai et al) meteorite remineralization clasts include: olivine, monzonite, granulite, kripp basalt, high-alumina basalt, low-titanium basalt.

The Yamato983885 meteorite is a lunar highland feldspar lithology, but the basalt debris contained in the meteorite seems to indicate that the meteorite is a polymineralized basalt, which is very similar in composition to the Calcalongcreek meteorite and the MET01210 meteorite.

The Moon is mostly breccia, composed mainly of rock debris and vitreous debris. Due to frequent meteorite impacts, the high temperatures make these rocks as hard as iron.

The breccia on the moon is about the size of the lunar surface, which is formed by the high heat of the lunar surface igneous rocks, mineral chips, lunar soil, vitreous, etc., which are melted and compacted and cooled by the high heat after the impact of meteorites.

Lunar breccia is divided into: glass-based breccia, mixed breccia, molten breccia, highland topsoil breccia, molten glass porphyry, regolith breccia.

The formation of glass-based breccia is mainly related to volcanic eruptions, in which lunar mineral slag is vitrified under volcanic high temperature and high heat, and other impurities are mixed together.

Other breccia rocks are mainly formed by meteorite impacts, but some are also caused by meteorite impacts and volcanic eruptions. On the moon, meteorites hit more frequently than the ground, and the number of breccia is high.

Not a meteorite, no molten crust, structure and mineral composition do not correspond to meteorites.

Lunar breccia is made up of breccia and detrivia.

Breccias include basalt, gabbro, monzonite, kreep, etc.; Chips are a collection of finer minerals, etc.

No matter what kind of lunar meteorite, the main constituent minerals are pyroxene, feldspar, olivine, and a small amount of quartz, magnetite, chromite, etc.

Regardless of whether the white minerals in the figure are calcite or quartz or other minerals, they do not meet the characteristics of the lunar meteorite mineral assemblage described above.