10 LIVRES EN ANGLAIS EN RAPPORT AVEC «HYDROPHANE»
Découvrez l'usage de
hydrophane dans la sélection bibliographique suivante. Des livres en rapport avec
hydrophane et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
A Treatise on Gems: In Reference to Their Practical and ...
HYDROPHANE. ' The name of this variety of Opal relates to the peculiar property
of becoming transparent, and opalescent after immersion in water. The ancients
called this stone lapis mutabilis, and achates oculus mundi. It is a common or ...
air, a stone so treated will be opaque, but will begin to show some degree of
transparency when warmed up; hydrophane has also erroneously been called
pyrophane; some of the clear hydrophane is unstable when wet, but becomes
stable ...
3
A treatise on gems, in reference to their pratical and ...
(D.) HYDROPHANE. The name of this variety of Opal has reference to its peculiar
property of becoming transparent, and opalescent after immersion in water. The
ancients called this stone Lapis Mutabilis, and Achates Oculus Mundi.
4
A popular treatise on gems, in reference to their scientific ...
It has, when dry, a white, yellowish, or reddish color, and a specific gravity of 1'95
to 2'01 ; and according to Hauy, a hydrophane, having been immersed for four
minutes in water, gained thirty-four centigrammes. ' The hydrophane is found in ...
5
A Popular Treatise on Gems: In Reference to Their Scientific ...
It has, when dry, a white, yellowish, or reddish color, and a specific gravity of T95
to 2-01 ; and according to HaOy, a hydrophane, having been immersed for four
minutes in water, gained thirty-four centigrammes. The hydrophane is found in ...
6
An Elementary Introduction to the knowledge of Mineralogy: ...
Quarz resinite hydrophane H. Silex hydrophane Bt. This mineral possesses the
property of becoming considerablyr transparent in water,* and of exhibiting some
of the colours observable in the precious opal. It is commonly opake and is ...
William PHILLIPS (F.L.S., etc.), 1823
7
The Annals of Philosophy
Amianthus squeezed forcibly together exhibited no sensible difference in its
absorption. Exper. 4, with Saxon Hydrophane,* and Quartz from Vauvert.^ — The
Saxon hydrophane was dried in the open air, the quartz from Vauvert by
exposure to ...
Thomas Thomson, Richard Phillips, Edward William Brayley, 1815
8
An elementary treatise on mineralogy and geology: being an ...
( Werser.) In the United States, on the banks of the Delaware, near Easton in
Pennsylvania, Opal is found strongly characterized. ( IVister.) Appendix.
hydrophane. t Tliis name denotes merely a peculiar property, which some
minerals possess, ...
9
United States Geological Survey Professional Paper
Additional eruptions were recorded in 1968, 1974, 1976, 1978, 1980, and 1984 (
Yellowstone informal records). HYDROPHANE SPRINGS The group of normally
inconspicuous vents known as Hydrophane Springs is near the southern limit of ...
10
Zoography: or, The beauties of nature displayed. In select ...
The younger Saussure has found an ingenious way to render the hydrophane
transparent by heat as well as moisture. This stone is evidently of a porous nature
, and merely becomes transparent by having its pores rilled with a fluid ; therefore
...
5 ACTUALITÉS CONTENANT LE TERME «HYDROPHANE»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
hydrophane est employé dans le contexte des actualités suivantes.
CIBJO seeks to 'monitor' diamond labs
... Gemmological Association of Australia on how to define the difference between Australian opal and Ethiopian hydrophane opal was tabled ... «Jeweller Magazine, mai 15»
5 Revelations From the Tucson Gem Shows
... led by Gemworld International owner Richard Drucker, confirmed that a new find of black non-hydrophane opals had been found in the East ... «JCK, févr 15»
Opal market improves locally and internationally
“Over the previous five years, Australian opal sales were impacted by the large production of hydrophane opal coming out of Ethiopia,” she ... «Jeweller Magazine, mai 14»
On the Origins of Gems
When it was determined that the Wollo goods were in fact hydrophane — Greek for “water-loving,” which describes dry opals that have a ... «New York Times, mars 14»
Fascinating Ethiopian Welo Opal Showcasing at The Jewellery …
The phenomenon is known as hydrophane – it can take place within a few minutes of immersing the stone in water or removing it from water to ... «PR Web, juil 13»
