magnetite (Fe 3O 4), the black oxide of iron. In comparison, rust, the red oxide of iron (Fe 2O 3), undergoes an extremely large volume change upon hydration;...
18 KB (2,470 words) - 07:22, 9 July 2024
then requires extra cations. For example, in the mineral orthoclase [KAlSi 3O 8] n, the anion is a tridimensional network of tetrahedra in which all oxygen...
20 KB (1,897 words) - 18:21, 16 July 2024
NaAlSi3O8 oligoclase (10 to 30) (Na,Ca)(Al,Si)AlSi2O8 andesine (30 to 50) NaAlSi 3O 8 – CaAl 2Si 2O 8 labradorite (50 to 70) (Ca,Na)Al(Al,Si)Si2O8 bytownite (70...
25 KB (2,434 words) - 22:46, 14 June 2024
than 10% anorthite content. The pure albite endmember has the formula NaAlSi 3O 8. It is a tectosilicate. Its color is usually pure white, hence its name...
7 KB (561 words) - 16:13, 8 July 2024
5 million pounds) of triuranium octoxide (U 3O 8) at an average grade of 15.92%, for 75,070 tonnes of U 3O 8, and a measured and indicated resource of...
14 KB (909 words) - 03:26, 5 February 2024
binary inorganic compound of bromine and oxygen with the chemical formula Br 3O 8. This is a free radical and one of the most complex bromine oxides. A reaction...
3 KB (225 words) - 00:25, 23 June 2023
Vitisin A (pyranoanthocyanin) (redirect from Malvidin 3O-glucoside pyruvic acid)
Suzana Lucy Nixdorf and Isidro Hermosín-Gutiérrez, Analytica Chimica Acta, Volume 659, Issues 1-2, 5 February 2010, Pages 208-215, doi:10.1016/j.aca.2009...
3 KB (252 words) - 04:36, 8 May 2023
Tourmaline (category CS1: long volume value)
multiple names: authors list (link) Erratum: American Mineralogist (2013), Volume 98, page 524. Frank C. Hawthorne and Dona M. Dirlam. "Tourmaline: Tourmaline...
40 KB (3,209 words) - 07:24, 24 June 2024
water molecules form one hydroxide anion (OH− ) and one hydronium cation (H 3O+ ). Because of autoionization, at ambient temperatures pure liquid water has...
88 KB (9,563 words) - 11:36, 29 May 2024
the middle school is known as 2nd and 3rd cycles of basic education (2º e 3º ciclos do ensino básico). It comprises the 5th till 9th year of compulsory...
48 KB (5,727 words) - 05:17, 30 June 2024