The analysis showed that the composition of the original ash sample included mainly quartz, lime, anhydrite, calcite and smaller amounts of orthoclase, periclase, gehlenite, larnite, merwinite, pseudowollastonite, hematite, ettringite, melilite
and dolomite (Table 2).
The researchers modelled the trajectories of several hundred centimeter-sized melilite
mineral particles during a phase of disk instability.
Foit Jr., F., Hooper, R., Rosenberg, P., An unusual pyroxene, melilite
, and iron oxide mineral assemblage in a coal-fire buchite from Buffalo, Wyoming, Am.
These rocks, nephelinites, only contain nepheline [+ or -] melilite
. Ultramafic xenoliths primarily occur only in alkali basalts.
PHOTO : CL micrograph of spinel + melilite-rich buildup showing zoned isometric common spinel crystals (green) in a melilite
(1984) Jeffreyite, (Ca,Na)[.sub.2](Be,Al)[Si.sub.2](O,OH)[.sub.7] a new mineral species and its relation to the melilite
In both cases, Mg was found to be mostly present as periclase (MgO) and also partially bound as undecomposed carbonates (dolomite--CaMg[(C[O.sub.3]).sub.2] can be found in the CFBC bottom ash) or silicates (merwinite, [Ca.sub.3]Mg[(Si[O.sub.4]).sub.2], melilite