iron rule
Example Sentences
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In contrast, chondrites retain primitive solar system dust as well as small molten droplets called chondrules.
From Science Daily • Nov. 13, 2025
The chemical composition of chondrules can help scientists understand the structure and composition of the nebula of gas and dust from which the planets and asteroids formed.
From Scientific American • May 25, 2023
“If we get ones that look similar to the natural chondrules that we’ve studied, then we have a better of idea of how they formed,” Smith says.
From Scientific American • Dec. 8, 2020
Essentially rocks within rocks, chondrules appear as rounded flecks in chondritic meteorites.
From Scientific American • Dec. 8, 2020
It is also a common constituent of meteoric stones, forming with olivine the bulk of the material: here it often forms small spherical masses, or chondrules, with an internal radiated structure.
From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" by Various
