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Lunar sample scale cube Papercraft

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This is a replica 1" scale cube to those that are used to show size and orientation of lunar samples at the Lunar Receiving Lab. These original scale cubes are made of machined, anodized aluminum, with engraved markings filled with baked enamel. This model accompany with 2 paper-replika.com scale cubes, 5 cm and 3 cm.

lunar scale cube

lunar scale cube

Moon Rock

In general, the rocks collected from the Moon are extremely old compared to rocks found on Earth, as measured by radiometric dating techniques. They range in age from about 3.16 billion years old for the basaltic samples derived from the lunar maria, up to about 4.5 billion years old for rocks derived from the highlands.Based on the age dating technique of "crater counting," the youngest basaltic eruptions are believed to

 

have occurred about 1.2 billion years ago, but we do not possess samples of these lavas. In contrast, the oldest ages of rocks from the Earth are about 3.8 billion years old, a vastly different value from that of the moon.

There are currently three sources of Moon rocks on Earth: 1) those collected by US Apollo missions; 2) samples returned by the Soviet Union Luna missions; and 3) rocks that were ejected naturally from the lunar surface by cratering events and subsequently fell to Earth as lunar meteorites. During the six Apollo surface excursions, 2,415 samples weighing 382 kg (842 lb) were collected, the majority by Apollo 15, 16, and 17. The three Luna spacecraft returned with an additional 326 g (0.66 lb) of samples. Since 1980, over 120 lunar meteorites representing about 60 different meteorite fall events (none witnessed) have been collected on Earth, with a total mass of over 48 kg. About 1/3 of these were discovered by American and Japanese teams searching for Antarctic meteorites (e.g., ANSMET), with most of the remainder having been discovered by anonymous collectors in the desert regions of northern Africa and Oman.

Nearly all lunar rocks are depleted in volatiles (such as potassium or sodium) and are completely lacking in the minerals found in Earth's water. In some regards, lunar rocks are closely related to earth's rocks in their composition of the element oxygen. The Apollo moon rocks were collected using a variety of tools, including hammers, rakes, scoops, tongs, and core tubes. Most were photographed prior to collection to record the condition in which they were found. They were placed inside sample bags and then a Special Environmental Sample Container for return to the Earth to protect them from contamination. In contrast to the Earth, large portions of the lunar crust appear to be composed of rocks with high concentrations of the mineral anorthite. The mare basalts have relatively high iron values. Furthermore, some of the mare basalts have very high levels of titanium (in the form of ilmenite). A new mineral found on the Moon was armalcolite, named for the three astronauts on the Apollo 11 mission: Armstrong, Aldrin, and Collins.

[Wikipedia]

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