Crossword clues for chondrite
The Collaborative International Dictionary
Chondrite \Chon"drite\, n. [Gr. ? a grain (of wheat or spelt), cartilage.] (Min.) A meteoric stone characterized by the presence of chondrules.
Wiktionary
n. A meteorite consisting of rock containing chondrules
WordNet
n. a rock of meteoric origin containing chondrules
Wikipedia
Chondrites are stony (non-metallic) meteorites that have not been modified due to melting or differentiation of the parent body. They are formed when various types of dust and small grains that were present in the early solar system accreted to form primitive asteroids. They are the most common type of meteorite that falls to Earth with estimates for the proportion of the total fall that they represent varying between 85.7% and 86.2%. Their study provides important clues for understanding the origin and age of the Solar System, the synthesis of organic compounds, the origin of life or the presence of water on Earth. One of their characteristics is the presence of chondrules, which are round grains formed by distinct minerals, that normally constitute between 20% and 80% of a chondrite by volume.
Chondrites can be differentiated from iron meteorites due to their low iron and nickel content. Other non-metallic meteorites, achondrites, which lack chondrules, were formed more recently.
There are currently over 27,000 chondrites in the world's collections. The largest individual stone ever recovered, weighing 1770 kg, was part of the Jilin meteorite shower of 1976. Chondrite falls range from single stones to extraordinary showers consisting of thousands of individual stones, as occurred in the Holbrook fall of 1912, where an estimated 14,000 stones rained down on northern Arizona.
Usage examples of "chondrite".
When they crashed into Earth in ancient times, the chondrites planted these seeds, and larger diamonds grew around them.
Lora, looked like any other dull carbonaceous chondrite from the outside, after all.
The meteorite was of a rare type known as a carbonaceous chondrite, and the townspeople helpfully collected and brought in some two hundred pounds of it.
A swarm of Utopian asteroids was closing on her, brain clans and mining DIs living in hollowed-out chunks of carbonaceous chondrite, any one of which could have mustered enough votes to abolish Mada in all ten dimensions.
Our one whatever it was, Lora, looked like any other dull carbonaceous chondrite from the outside, after all.
ESA probe about ten years later, and found to be a carbonaceous chondrite.
Divert all scanners to the asteroids and analyze anything that isn’t chondrites, achondrites, silicates, or metallic iron.
All three moons had large amounts of rock scattered over their icy surfaces, the remnants of meteoric impact for the most part, carbonaeous chondrite rubble, a very useful building material.
The settlers of the three moons had, on their arrival some thirty m-years before, rendered the chondrites and built tent frameworks of carbon nanotube similar to that used in Mars’.
But Spencer was pretty good at rock ID, and he collected several samples that he said were exotic carbonaceous chondrite, very likely to be pieces of the impact rock.
And if you reach a C-type, a carbonaceous chondrite, full of water and organic compounds, you can do what the hell you like.
But we think it's a C-type: a carbonaceous chondrite, not nickel-iron, like Reinmuth.
Five days later they arrived at the top of the cable, and decelerated into locks inside the ballast asteroid Clarke, now a much-tunneled chunk of carbonaceous chondrite, so filigreed with exterior buildings and interior chambers that it seemed more a spaceship or a city than Mars's third moon.
A fairly abundant type of meteorite on the earth, known as carbonaceous chondrite, is thought to consist of fragments from C-type asteroids in the main belt.
I have to spend a long minute thinking how I knew what a carbonaceous chondrite is.