"Spinelle" Quotes from Famous Books
 ... only slags with soda: allophane, cymophane, polymignite, aeschynite, oerstedtite, titaniferous iron, tantalite, oxides of iron, yttro-tantalite, oxides of manganese, peroxide of tin (is reduced), hydrate of alumina, hydrate of magnesia, spinel, gahnite, worthite, carbonate of zinc, pechuran, zircon, thorite, andalusite, staurolite, gehlenite, chlorite spar, chrome ochre, uwarowite, chromate of iron, carbonates of the earths, carbonates of the metallic oxides, basic phosphate of yttria, do. ...
— A System of Instruction in the Practical Use of the Blowpipe • Anonymous
... vulgarly called Al Balaksh." Albertus Magnus says the Balagius is the female of the Carbuncle or Ruby Proper, "and some say it is his house, and hath thereby got the name, quasi Palatium Carbunculi!" The Balais or Balas Ruby is, like the Spinel, a kind inferior to the real Ruby of Ava. The author of the Masalak al Absar says the finest Balas ever seen in the Arab countries was one presented to Malek 'Adil Ketboga, at Damascus; it was of a triangular form and weighed 50 drachms. The prices of Balasci in Europe in ...
— The Travels of Marco Polo Volume 1 • Marco Polo and Rustichello of Pisa
... in the veins therein contained; for instance, crystals of dolomite are found deeper in the rock as they occur in the denser soapstone, which becomes so at a more or less considerable depth, with spinel, zircon, etc., of the granular limestone. They occur generally in pockets within five feat from the surface, but they can hardly be called included minerals, as they are rather, as their mention suggests, pockets, and adjacent ...
— Scientific American Supplement, No. 363, December 16, 1882 • Various |
