TL;DR: Phyllosilicates is a main entry in the 外星矿物知识引擎 database.
Phyllosilicates are the primary water-bearing minerals in carbonaceous asteroids. Hayabusa2 and OSIRIS-REx confirmed their presence in Ryugu and Bennu samples. Heating to 300-800°C releases water, making these minerals the key resource for asteroid water extraction.
Formula
(Mg,Fe)₃Si₂O₅(OH)₄
Crystal System
Monoclinic/Orthorhombic
Occurrence
Abundant in C-type asteroids (Ryugu, Bennu); found in carbonaceous chondrite meteorites
Significance
Primary water-bearing mineral in asteroids; source of water for space propellant; indicator of aqueous alteration
Source
JAXA Hayabusa2, NASA OSIRIS-REx sample analysis