It occurs in the oxidized zone of copper deposits and is frequently found on the timbers and walls of mine workings, where it has crystallized from mine waters.
Although some glauconite has been interpreted to have been formed from preexisting layered silicates (e.g., detrital biotite), most of it appears to have crystallized from aluminosilicate gels perhaps under the influence of biochemical activities that produce reducing environments.
For example, when the liquid has reached A, at 1,400 °C, about 65 percent plagioclase with about 73 percent An (point O on the solidus) has crystallized from the liquid, which is now at about 36 percent An and 64 percent Ab.
Recovered from the Allan Hills ice field of Antarctica in 1984, the 1.9-kg (4.2-pound) igneous rock is thought to have crystallized from magma on Mars 4.5 billion years ago and later to have been shocked and altered, perhaps by one or more nearby meteoroid or asteroid impacts.
Phosphates can be grouped as: (1) primary phosphates that have crystallized from a liquid; (2) secondary phosphates formed by the alteration of primary phosphates; and (3) fine-grained rock phosphates formed at low temperatures from phosphorus-bearing organic material, primarily underwater.
The Fo77 olivine is interpreted to have crystallized from differentiated melts with FeO*/MgO approximately 2.4 ± 0.2 by weight, assuming that the Fe2+/Mg partition coefficient between the olivine and melt = 0.3 (Roeder and Emslie 1970) and Fe3+/Fetotal of arc basaltic melts is equal to 0.18 to 0.32 (Kelley and Cottrell 2009).
Irradiation regimes, within the process of which there is no melting, generate one maximum of dislocation density, at the same time the regimes resulting in melting produce two maximums of dislocation density: one of them is localized inside the layer which has crystallized from melt, and the other one at the melt solid interface.
That these two terms are taken are synonymous is probably to be connected to the authors' (and others') conception of a weak or absent species structure at the time of LUCA: the 3 domains of life would have "crystallized" from a "communal population".
Vichy had crystallized not just from outside pressures and bad apples, he pointed out, but from native tensions.
