-
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 (pyr)...
-
chalcopyrite comes from the Gr****
words chalkos,
which means copper, and
pyrites',
which means striking fire. It was
sometimes historically referred to...
-
Speerkies (Speer
meaning spear and Kies
gravel or stone). This twin is very
common in the
marcasite of a
chalky origin,
particularly those from the Cap Blanc-Nez...
-
shows prismatic crystal or
columnar forms with
striations and
twinning common. ****nopyrite may be
referred to in
older references as orthorhombic, but...
-
pyrites to fall (under
tension of the dog spring) on to the now
rotating wheel. That is the
second purpose of a
sliding pan cover: were the
pyrites to...
- and
general lack of ****ociation with
pyrite or pyrrhotite.
Millerite is a
common metamorphic mineral replacing pentlandite within serpentinite ultramafics...
- 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...
- philosophorum,
Panacea salutifera, Pandora, Phoenix,
Philosophic mercury,
Pyrites,
Radices arboris solares, Regina, Rex regum, Sal metallorum,
Salvator terrenus...
-
lamps were
brought into
common use,
firedamp explosions could still be
caused by
sparks produced when coal
contaminated with
pyrites was
struck with metal...
-
friction matches were invented.
Throughout prehistoric Europe flint and iron
pyrites (commonly
known as fool's gold) were
struck against one
another in order...
