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Stone, the

Impurities. The chemical composition and properties of lime and limestone depend on the nature of the impurities and the degree of contamination of the original stone. The contaminating materials either were deposited simultaneously with the CaCO or entered during some later stage (6). [Pg.165]

Dental stone is generally used at a water—powder volume ratio of about 30 parts water to 100 parts of stone. The mix is not easily poured, but can flow readily under mechanical vibration. The physical property requirements include a setting time of 10 3 min fineness of powder, where 98% should pass a number 100 sieve (ca 0.15 mm) and 90% pass a number 200 sieve (ca 0.07 mm) linear setting expansion at 2 h of <0.20% compressive strength at 1 h of 20.6 MPa (2987 psi) and consistency such that the slump test disk is 30 2 mm diameter. [Pg.477]

High Strength Dental Stone. This dental stone is often referred to as improved dental stone. The crystals are of a cubic or rectangular shape and show a reduction in cracking and porosity. These changes in crystals reduce the amount of water required to wet the powder and produce a workable consistency, ie, 20—22 parts water per 100 parts powder. [Pg.477]

A wet-process plant maldug cement from shale and hmestoue has been described by Bergstrom [Roc/c Prod., 64—71 (June 1967)]. There are separate facilities for grinding each type of stone. The ball mill operates in closed circuit with a battery of Dutch State Mines screens. Material passing the screens is 85 percent minus 200 mesh. The entire process is extensively instrumented and controlled by computer. Automatic devices sample crushed rock, slurries, and finished product for chemical analysis by X-rav fluorescence. Mill circuit feed rates and water additions are governed by conventional controllers. [Pg.1871]

Document and data control is one of the most important aspects of the quality system. Although not the only aspect of the quality system, documentation is the foundation stone. The requirements for document and data control can be confusing because the standard doesn t specify what a document is and whether a record is a document or whether data are documents. As data is information and documents are recorded information perhaps this clause should have been headed Information control. There is often confusion also between quality system documents and quality documents and between technical documents and quality documents. There is no doubt that all documents, data, and records should be controlled but the types of control will vary depending on the type of document. [Pg.281]

It s not even certain that this is his tomb, I read, despite the hopeful local labels. And yet someone s present, as they weren t at the castle a man and a woman mourning a child. It s not Elizabeth, not Anthony, who mourn this child they ve never stood where we stand and this is the home and the sorrow of their enemies. And yet somehow, in this air scented with long-dead candle-smoke, the cold and ancient stone, the bitter spice of myrrh. .. somehow they invade my senses and my mind and bring Anthony before me like an opium dream of the heart, and Elizabeth too, for losing a child is losing a child a grief unfathomable. [Pg.379]

Hermes Trismegistus. The Golden Treatise of Hermes Trismegistus concerning the physical secret of the philosopher s stone / the translation and commentary of Mary Anne Atwood the text of Barrett s version with additional notes by Patrick J. Smith. [Pg.9]

Secrets disclos d. One Friend to another as Bloomfield suppose, The Philosophers Stone the Secrets doth disclose." In Aurifontina chymica, 1], 54-55. R.A.M.S., 1981. [Pg.22]

The secret of the immortal liquor called alkahest, or ignisaqua / by Eirenaeus Philatethes [pseud.] — The practice of lights, or, An excellent and ancient treatise of the philosophers stone — Praecipiolum, or, The immature-mineral-electrum / by J.B. Van-Helmont — Aurum- potabile, or, The receit of Dr. Fr. Antonie — A treatise of Bernard, Earl of Trevisan, of the philosophers stone — The bosome-book of Sir George Ripley —... [Pg.34]

INTRODUCTION TO ALCHEMY The Great Work begins here What Is alchemy Origins of alchemy History of alchemy Chronology of alchemy Alchemical theory The mysterious First Matter Secret fire of the alchemists The Philosopher s Stone The Axioms of alchemy Recommended books. Pages still under construction. [Pg.390]

Bennett, Chris, Lynn Osburn and Judy Osbum. Cannabis the Philosophers Stone. The Knights Templar and cannabis. Alchemy J2, no. 3 (May/Jun 2001). rhttp //www.alchemvlab.com/AJ2-3.html. [Pg.454]

Gilbert, R. A. Casting the first stone the hypocrisy of religious fundamentalism. Shaftesbury Rockport (MA) Element, 1993. ix, 184 p. ISBN 1-85230-367-0... [Pg.528]

Marian, Stanton, ed.Fire in the stone the alchemy of desire, edited with introduction by Stanton Marian. Chiron Publications, 1997. ix, 206 p. [Pg.590]

The materials used to construct a foundation can often be used as an effective barrier to the entry of radon-laden soil gas. Below-grade walls may be constructed of poured concrete, masonry, or other materials such as pressure-treated wood or stone. The materials covered in this section, poured concrete and masonry block, are the materials most commonly used for new construction. Details of radon protection in permanent wood foundations can be found in an NFoPA publication.21... [Pg.1274]

Graham, W. A. G., and F.G. A. Stone The Relative Stabilities of some Molecular Addition Compounds of Boron. J. Inorg. Nucl. Chem. 3, 164 (1956). [Pg.109]

The reactor consists of a cylindrical tube 59 cm long packed with pumice stone. The catalyst charge was constant in all of the runs below and equal to W. The reactor void volume was approximately 100 cm3. The reaction is believed to be first-order in ethylene chloride under the conditions of this study and in all cases the feedstock was pure reactant. Both the reactants and the products are gases at the conditions involved. Ideal gases may be assumed. The following data were reported at 600°C and one atmosphere. [Pg.306]

Gems and Precious Stones. The University of Wisconsin Geology and Geophysics Department, Professor Jill Banfield, http //www.geology.wisc.edu/ jill/306.html... [Pg.28]

The largest class of meteorite finds is stony meteorites, made principally of stone. The general stony classification is divided into three subclasses called chondrites, carbonaceous chondrites and achondrites, and it is at this level of distinction at which we will stop. Before looking at their mineral and isotopic structure in more detail, it is useful to hold the composition of the Earth s crust in mind here for comparison. The Earth s crust is 49 per cent oxygen, 26 per cent silicon, 7.5 per cent aluminium, 4.7 per cent iron, 3.4 per cent calcium, 2.6 per cent sodium, 2.4 per cent potassium and 1.9 per cent magnesium, which must have formed from the common origin of the solar system. [Pg.162]


See other pages where Stone, the is mentioned: [Pg.1531]    [Pg.158]    [Pg.425]    [Pg.572]    [Pg.412]    [Pg.165]    [Pg.157]    [Pg.512]    [Pg.213]    [Pg.87]    [Pg.23]    [Pg.477]    [Pg.867]    [Pg.1176]    [Pg.73]    [Pg.906]    [Pg.2]    [Pg.7]    [Pg.27]    [Pg.51]    [Pg.92]    [Pg.17]    [Pg.188]    [Pg.103]    [Pg.159]    [Pg.224]    [Pg.376]    [Pg.388]    [Pg.536]    [Pg.86]    [Pg.176]   
See also in sourсe #XX -- [ Pg.22 , Pg.24 , Pg.32 , Pg.35 , Pg.38 , Pg.67 , Pg.68 , Pg.77 , Pg.83 , Pg.91 , Pg.92 , Pg.93 , Pg.117 , Pg.124 , Pg.131 , Pg.137 , Pg.144 , Pg.146 , Pg.147 ]




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