-
Allanite (also
called orthite) is a
sorosilicate group of
minerals within the
broader epidote group that
contain a
significant amount of rare-earth elements...
-
several varieties have been distinguished, and many
different names applied.
Orthite was the name
given by Jöns
Berzelius in 1818 to a
hydrated form
found as...
- rare-earth residues,
while Vladimir Vernadsky independently found it in
orthite.
Neither claim was
confirmed due to
World War I, and
neither could be confirmed...
-
Melilite Orthite and
melilite (blue) with quartz, from a thin
section in
crossed polarized light.
General Category Sorosilicates Formula (repeating unit)...
- "Bagrationite" in his honour, but it had
already been
described as
allanite (or
orthite).
Prince Bagration was
married to Anna
Alekseyevna Martynova (1824–1885)...
- andalusite, sillimanite, kyanite,
hercynite (a
green spinel), rutile,
orthite and tourmaline.
Though occasionally we may find
larger grains of feldspar...
-
House of Vasa the
Royal House of Sweden. In 1862 Bahr
analysed the
mineral Orthite—Allanite-(Y)—from the
Norwegian island Rönsholm and
found an
oxide which...
- rare-earth residues,
while Vladimir Vernadsky independently found it in
orthite.
Neither claim was
confirmed due to
World War I, and
neither could be confirmed...
-
Hypothesised from
spectral line
observations in the rare-earth
mineral orthite. It was
later confirmed that
these lines were due to the
recently discovered...
- rare
earth element cerium. The
mineral provisionally named "magnesium
orthite" by
Geijer himself was
renamed after structural refinement by
Peacor and...
