-
tended to be
pyritic ore. The gold was
difficult to
extract from such ores. A
process known as
chlorination was once used to
treat pyritic gold ore. Typically...
-
helped increase copper production in Kyshtym, Russia,
through the use of
pyritic smelting. He also
agreed to
manage a
separate mine in the
Altai Mountains...
-
Kratochvilite is a rare
organic mineral formed by
combustion of coal or
pyritic black shale deposits. It is a
hydrocarbon with the
formula of
either C13H10...
-
conditions causing the
thaumasite form of
sulfate attack to
concrete in
pyritic ground".
Cement and
Concrete Composites.
Thaumasite in
Cementitious Materials...
-
National Library of Canada, May 2000 Shrimer, F. and Bromley, AV (2012) "
Pyritic Heave in Ireland".
Proceedings of the
Euroseminar on
Building Materials...
- Limb Valley.
Copperas (iron(II) sulfate) was
manufactured here from the
pyritic Ringinglow coal seam,
mined nearby. The
copperas solution was used in the...
-
Whitby in
North Yorkshire, England.
Beneath extensive deposits of grey
pyritic shale a thin band of
sideritic mudstone is
present at this site and there...
-
formation contains the
Bacolet Formation and
comprises organic-rich,
black pyritic siliceous mudstones and fine-grained
volcaniclastic sandstones and siltstones...
-
atmosphere or can be
washed out. In warm climates, it is
possible to
leave pyritic ore out in the rain. The
combined action of rain, bacteria, and heat oxidize...
-
Sulfur dioxide is
generated by
burning elemental sulfur or by
roasting pyritic ore in a
current of air: S8 + 8 O2 → 8 SO2 4 FeS2 + 11 O2 → 2 Fe2O3 + 8...
