merwinite

merwinite

[′mər·wə‚nīt]
(mineralogy)
Ca3MgSi2O8 A rare colorless or pale-green neosilicate mineral crystallizing in the monoclinic system; occurs in granular aggregates showing polysynthetic twinning; hardness is 6 on Mohs scale, and specific gravity is 3.15
References in periodicals archive ?
Merwinite has attracted the attention of many researchers in recent years due to its higher cellular proliferation and better mechanical properties.
In the Balti TPP secondary Ca-silicates are represented mainly by [beta]-C2S (belite), merwinite and wollastonite; while in the Eesti TPP also C3S, rankinite, as well as C4AF and akermanite are found.
7]], periclase [MgO], clinker-minerals: belite [[beta]-C2S], merwinite [Ca3Mg(SiO4)2].
Fresh semi-coke contains occasionally yellowish-green lumps of partially melted slag, which are composed of high-temperature Ca-Mg silicates--diposide, enstatite and various clinker-minerals ([beta]-C2S, C3S, merwinite and traces of Ca-ferrites).
In this process a slag-like material forms, which consists of amorphous glass phase at the expense of the decomposition and melting of alumosilicate minerals (clays) and newformed Ca-silicates--melilite, cement minerals like belite [[beta]-C2S], merwinite, etc.
There are also phases like melilite, periclase, belite, merwinite, formed by partial thermal decomposition and subsequent reactions of the initial minerals.