Glance pitch

The heavy, viscous petroleum substances impregnating the tar sands are called asphaltic oils. Other names used to describe these oils include maltha, brea, and chapapote. Asphaltic petroleums are most commonly confused with, but are not related to asphaltites (gilsonite, glance pitch, and grahamite) the asphaltic pyrobitumens (elaterite, wurtzilite, albertite, and impsonite) the native mineral wax (ozokerite) and the pyrogenous distillates of bituminous substances (tar and pitch). 

Manjak n. Intense black, naturally occurring asphaltum, obtained from Barbados. It differs from other asphaltums used in the trade by reason of its unusual staining power and difficult solubility. Prolonged high-temperature treatment is necessary in order to effect a reasonable solution in drying oils, and a substantial amount of mineral matter always remains undissolved. It is used alone, or with gilsonite, in black bituminous finishes of many types. Syn glance pitch. 

The term bituminous asphalts is intended to include both native asphalts and asphaltites such as Gilsonite, Glance pitch, and Grahanite. A full description of bituminous asphalts can be found in Abraham s Asphalts and Allied Substances, 6th Edition, Volume 1, Chapter 2, Van Nostrand Co., Inc., particularly Table III on page 60. 

Glance eo il from F.iugkuhl,. Pitch coal from Uabjchtswold,.. 

Why return to Paraiso Aphrodite was saying, her voice pitched low, as she glanced at Padorin striding by in doomed silence. We re not done here, Trix, I was hoping for your help. ... 

The helical smectic C state has the point symmetry (< 22), illustrated in Fig. 19, which does not permit a polar vector. It is therefore neither pyroelectric nor ferroelectric. Nor can it, of course, be piezoelectric, which is also easily realized after a glance at Fig. 14 if we apply a pressure or tension vertically, i.e. across the smectic layers (only in this direction can the liquid crystal sustain a strain), we may influence the pitch of the helix but no macroscopic po-... 

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