-
found in coal. The name
pyrite is
derived from the Gr**** πυρίτης λίθος (
pyritēs lithos), 'stone or
mineral which strikes fire', in turn from πῦρ (pŷr)...
- troilite.
Pyrrhotite is also
called magnetic pyrite,
because the
color is
similar to
pyrite and it is
weakly magnetic. The
magnetism decreases as the iron...
-
chalcopyrite comes from the Gr****
words chalkos,
which means copper, and
pyrites,
which means striking fire. It was
sometimes historically referred to as...
- 15th
Conference of the
Union of
Chemistry in Amsterdam.
Analysis of
Magnetical Pyrites (1804)
Treatise on
Spikenard of the
Ancients (1836)
After his father's...
- content. The ore
minerals included zinc blende, chalcopyrite,
magnetic pyrites and
magnetic iron ore. Due to its altitude, the
temperatures in Rittersgrün...
-
Luster Metallic Streak Greenish black Diaphaneity Opaque Specific gravity 5.3–5.5
Other characteristics brittle and
becomes magnetic on
heating References...
- The jaws that hold the
pyrites inside wheellock guns were
secured with ****s, and the need to
constantly replace the
pyrites resulted in a considerable...
-
exported to
Germany a
large part of
their surplus oil, chromium, bauxite,
pyrites, oil-bearing nuts, maize, wheat, meat and tobacco.
Germany also made big...
- Historically, the
roasting of
pyrites,
residues from the
manufacture of
sulfuric acid, was only
intended to
remove sulfur and zinc.
Pyrites contain 60-65% iron...
-
Distributing Electricity U.S.
patent 0,465,250 –
Process of
Extracting Copper Pyrites U.S.
patent 0,465,251 –
Method of
Bricking Fine Ores U.S.
patent 0,465...
