Related Experiment Video
Updated: Jul 11, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
A carbonate-rich, hydrated, interplanetary dust particle: possible residue from protostellar clouds
Abstract:
Transmission electron microscopy of a hydrated interplanetary dust particle (IDP) indicates that it contains abundant magnesium-iron carbonates, primarily breunnerite and magnesian siderite. This IDP displays a strong absorption band at 6.8 micrometers in its infrared spectrum, similar to that in certain protostellar spectra. The carbonates probably account for the 6.8-micrometer band in the IDP spectrum, suggesting that carbonate also may occur in interstellar dust and be the source of the controversial 6.8-micrometer feature from the protostellar spectra.
More Related Videos
Related Concept Videos
Gravimetry: Inorganic And Organic Precipitating Agents
The Carbon Cycle
Colloidal precipitates
Conditions on Early Earth
Conditions on Early Earth
The Colloidal State

