nesquehonite


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Related to nesquehonite: Lansfordite

nesquehonite

[‚nes·kwə′hō‚nīt]
(mineralogy)
MgCo3·3H2O A colorless to white, orthorhombic mineral consisting of hydrated magnesium carbonate.
References in periodicals archive ?
The split between 1403 and 1510 [cm.sup.-1] and the shoulder appearance at 1470 [cm.sup.-1] is described as a characteristic representing nesquehonite. (10), (21) Similarly, the absorption band at 1099 [cm.sup.-1] illustrates the internal vibration mode of nesquehonite due to symmetric stretching.
XRD analysis of the reaction products isolated at various times as the reaction progressed confirmed that nesquehonite formation was initiated around 7 min of treatment (Fig.
Another important observation was that nesquehonite formation is represented through a color change during the reaction process.
8 correspond well with the nesquehonite Formation reported elsewhere.
The fact that the nesquehonite formed so rapidly "suggests, but does not prove" that most weathering effects on Antarctic meteorites occur after they have been "exhumed" from beneath the ice, according to the researchers.