-
Hematite (/ˈhiːməˌtaɪt, ˈhɛmə-/), also
spelled as
haematite, is a
common iron
oxide compound with the formula, Fe2O3 and is
widely found in
rocks and...
-
diaspore (α-AlO(OH)),
mixed with the two iron
oxides goethite (FeO(OH)) and
haematite (Fe2O3), the
aluminium clay
mineral kaolinite (Al2Si2O5(OH)4) and small...
-
which gives sienna pigment its color.
Haematite. When roasted,
limonite is
converted partially to
haematite and its
colors turns more reddish. After...
- by
itself can
reduce iron
oxides to the metal. In iron ore smelting,
haematite gets
reduced at the top of the furnace,
where temperature is in the range...
- In 1869, John
Spencer & Sons took the
works over,
renaming it the Tyne
Haematite Iron
Company when it
reopened in 1871. The
works then used
imported Spanish...
- iron-rich biotite, but the term also
refers to a
flaky micaceous form of
haematite, and the
field term
Lepidomelane for
unanalysed iron-rich
Biotite avoids...
- (metamorphosed to staurolite-grade itabirites) have been
enriched to form
haematite and
haematite-goethite mineralisations. The
potential yield of the two deposits...
-
micaceous haematite,
known as "shiny ore".
Since 1984 the mine has been the
subject of a
volunteer restoration project.
Micaceous haematite,
known as...
-
Eswatini (Swaziland). This mine is
considered to be the world's oldest. The
haematite ore
deposit was used in the
Middle Stone Age to
extract red ochre, while...
- Jens; Komatsu, Goro (17 June 2004). "A
possible terrestrial analogue for
haematite concretions on Mars". Nature. 429 (6993): 731–4. Bibcode:2004Natur.429...
