CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «BRACHYPINAKOID»
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1
Elementary Crystallography
157 to 159, which represent the character of the albite twinning of the tri- clinic
mineral albite, in which the brachypinakoid is the twin-plane. The first, Fig. 157,
represents the supposed original position of a component of the twin projected
on ...
John W. Evans, George MacDonald Davies, 1940
2
Lithology: Miscellaneous Papers
Es sind säulenförmige, am Ende abgebrochene Gestalten, umhüllt von weissem
oder grünem Talk, welcher auch in der zersetzten Rinde der Enstatite‚ sowie
parallel der Flächen des Prisma oder Brachypinakoid in feinen Schuppen auftritt.
... to brachypinakoid. Colour: Asparagus-green, grass -green, yellowish-green,
and greenish- white. Transparent to translucent. Streak : Colourless. Lustre :
Vitreous. Optic axial plane : 010. Bis. c. D. refrac. : Positive. Fracture : Concboidal
or ...
4
The London, Edinburgh and Dublin Philosophical Magazine and ...
It should be observed, in reference to the crystallization of barytine, that some
crystallographers make the base, as here given, a side vertical (or
brachypinakoid of Naumann) =»«. In this position the front polars, J 55 and \ oo ,
become vertical ...
5
Jahrbuch: General Register
... häufig 2 bis 3 cm Lange; manche Flächen des Gesteins sind krustenartig mit
Staurolithkristallen überdeckt. Die Kristalle zeigen stets das Prisma (110), sehr oft
kombiniert mit dem Brachypinakoid als schmale Seitenflächen, 504 W. Hammer.
Geologische Bundesanstalt (Austria), 1906
6
Report on Deep-sea Deposits Based on the Specimens Collected ...
Imperfect cleavage following the brachypinakoid and cracks following the
macropinakoid. Transparent, colourless, greenish or reddish by alteration,
without pleochroisni, and with feeble absorption, high relief; colours of
polarisation very bright ...
Great Britain. Challenger Office, Sir John Murray, A. F. Renard, 1965
7
The Study of Rocks: An Elementary Text-book of Petrology
The faces most commonly presented by crystals of olivine are those of the
rhombic prism oo P (giving an angle of little over 130°), the rhombic pyramid P,
the macropinakoid mPm, the brachypinakoid 00 P oo, the macro- and
brachydomes P ...
8
Proceedings of the Royal Society of London: Containing ...
Clezwa_qe.—The investigation of the cleavage directions was a difiicult matter,
owing to the small size of the crystals. The chief cleavage, a perfect one, is
parallel to the tabular plane of the thin plates, namely, the brachypinakoid, b = {
O10}.
Royal Society (Great Britain), 1907
9
Report on the Scientific Results of the Voyage of H.M.S. ...
Imperfect cleavage following the brachypinakoid and cracks following the
macropinakoid. Transparent, colourless, greenish or reddish by alteration,
without pleochroisru, and with feeble absorption, high relief; colours of
polarisation very bright ...
Challenger Expedition, Sir Charles Wyville Thomson, Sir John Murray, 1891
10
Proceedings of the Royal Society of London. Series A. ...
The chief cleavage, a perfect one, is parallel to the tabular plane of the thin plates
, namely, the brachypinakoid, b = {010}. The crystals also cleave parallel to the
basal pinakoid c = {001}, but the cleavage in this direction is not so perfect.
