"Calcite" Quotes from Famous Books
 ... In the case of sodium dihydrogen phosphate, NaH2PO4.H2O, a stable rhombic form is obtained from warm solutions, while a different, unstable, rhombic form is obtained from cold solutions. Calcium carbonate separates as hexagonal calcite from cold solutions (below 30 deg.), and as rhombic aragonite from solutions at higher temperatures; lead and strontium carbonates, however, induce the separation of aragonite at lower temperatures. From supersaturated solutions the ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various
... nature of the rock apparent. In these the ophitic arrangement of the coarse feldspars is well defined, and in spite of their subsequent alteration the fragments retain the crystal outlines and polarize together. Additional minerals found in the coarse schists are calcite, ilmenite, skeleton ...
— History and Comprehensive Description of Loudoun County, Virginia • James W. Head
... sacrilege that they have wrought. "As for Lugalzaggisi," he says, "patesi of Gishkhu, may his goddess Nidaba bear on her head (the weight of ) this transgression!" Now the name of Lugalzaggisi has been found upon a number of fragments of vases made of white calcite stalagmite which were discovered by Mr. Haynes during his excavations at Nippur. All the vases were engraved with the same inscription, so that it was possible by piecing the fragments of text together to obtain a more or less complete copy of ...
— History Of Egypt, Chaldaea, Syria, Babylonia, And Assyria In The Light Of Recent Discovery • L.W. King and H.R. Hall
... end in "ite"—apatite, calcite, dolomite, fluorite. But many do not: amphibole, copper (the most common pure metal in rocks), feldspar, galena, gypsum, hornblende, ...
— Let's collect rocks & shells • Shell Oil Company
... and didymium have been lately investigated by Drs. Hillebrand and Norton, in Bunsen's laboratory. Cerium looks like iron, having both its color and lustre, but is heavier, and has the hardness of calcite. It tarnishes slowly in dry air and rapidly in moist air. It ignites so readily that pieces scratched off inflame, and its wire burns more brilliantly than magnesium wire. Lauthanum is a little harder, but also ...
— The Galaxy, Volume 23, No. 2, February, 1877 • Various |
