Online Encyclopedia

Search over 40,000 articles from the original, classic Encyclopedia Britannica, 11th Edition.

POLLUX, or POLLUCITE

Online Encyclopedia
Originally appearing in Volume V22, Page 7 of the 1911 Encyclopedia Britannica.
Spread the word: del.icio.us del.icio.us it!

See also:

POLLUX, or POLLUCITE  , a rare See also:mineral, consisting of hydrous See also:caesium and See also:aluminium silicate, HZCs4A14(SiO3)9 . Caesium See also:oxide (CssO) is See also:present to the extent of 30-36 %, the amount varying somewhat owing to partial replacement by other alkalis, chiefly See also:sodium . The mineral crystallizes in the cubic See also:system . It is colourless and transparent, and has a vitreous lustre . There is no distinct cleavage and the fracture is conchoidal . The hardness is 61 and the specific gravity 2.90 . It occurs sparingly, together with the mineral " See also:castor " (see See also:PETALITE), in cavities in the See also:granite of the See also:island of See also:Elba, and with See also:beryl in See also:pegmatite See also:veins at See also:Rumford and See also:Hebron in See also:Maine .

End of Article: POLLUX, or POLLUCITE
[back]
JULIUS POLLUX
[next]
POLO (Tibetan pulu, ball)

Additional information and Comments

There are no comments yet for this article.
» Add information or comments to this article.
Please link directly to this article:
Highlight the code below, right click and select "copy." Paste it into a website, email, or other HTML document.