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Updated: June 20, 2025
In one collection of these shells, there were some valves of the Venus sinuosa, Lam., the same species found with the Mactra on the banks of the Uruguay. Besides these shells, cellular, highly crystalline rock, formed of the casts of small bivalves, is found near Ensenada; and likewise beds of sea-shells, which from their appearance appear to have lain on the surface.
Wherever you go you are followed by the musical ripple of these runlets, purling brooks so crystalline that you are tempted to look for forget-me-nots. The voluntariness of this street watering constitutes its witchery. Post haste flows each tiny course; not having a moment to spare seems every current. Need we wonder at the fabled Arethusas and Sabrinas of more youthful worlds?
Thus, for example, we behold alike in the crystalline and fossiliferous formations an alternation of beds varying greatly in composition, colour, and thickness.
In the case of water, for instance, he finds that ordinary ice transforms itself, under a given pressure, at the temperature of -80° C. into another crystalline variety which is denser than water.
So, then, gathering together this which is discussed, it seems that there may be ten Heavens, of which the Heaven of Venus may be the third; whereof mention is made in that part which I intend to demonstrate. And it is to be known that each Heaven below the Crystalline has two firm poles as to itself; and the ninth has them firm and fixed, and not mutable in any respect.
It also teaches that colloidal matter, when exposed to certain conditions, presents the phenomena of life, and that it can be formed from crystalline matter, and thus that the prima materia of which these are diverse forms contains potentially all the multitudinous kinds of animal and vegetable existence.
All mineralogists are agreed that the passage of voluminous masses, from a liquid or pasty to a solid and crystalline state, must be an extremely slow process.
On the other hand, he continues, 'it has a most manifest relation to the crystalline structure of bismuth and other bodies, and therefore to the power by which their molecules are able to build up the crystalline masses.
The perfume of ripening muscadines came from the bank of the river. The papaws hung globular among the leaves of the bushes, and the persimmons were reddening. The vermilion sun was low in the sky above the purpling mountains; the stream had changed from a crystalline brown to red, to gold, and now it was beginning to be purple and silver.
The eastern and most important band consists of hills and mountains of ancient crystalline rocks, somewhat resembling those of the Laurentian highland but by no means so old. West of this comes a broad valley eroded for the most part in the softer portions of a highly folded series of sedimentary rocks which are of great age but younger than the crystalline rocks to the east.
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