-
towards hornblende and arfvedsonite.
There is not a
continuous series between calcic clinoamphiboles, such as hornblende, and low-calcium amphiboles, such as...
-
display an
iridescent effect (schiller).
Labradorite is an
intermediate to
calcic member of the
plagioclase series. It has an
anorthite percentage (%An) of...
-
Calcium sulfide is the
chemical compound with the
formula CaS. This
white material crystallizes in
cubes like rock salt. CaS has been
studied as a component...
-
exclusively of the rock
anorthosite (>90%
calcic plagioclase) with less
common anorthositic gabbro (70-80%
calcic plagioclase, with
minor pyroxene). The...
-
igneous rocks into four series: the alkalic, the alkali-
calcic, the calc-alkali, and the
calcic series. His
definition of the
alkali series, and the term...
- type. It
consists essentially of
major but
variable amounts of
olivine and
calcic plagioclase along with
minor pyroxene. It is an olivine-rich anorthosite...
- petrology, the name
given to
calcic foidal gabbro, a
plutonic hylocrystalline rock
consisting of augite, olivine,
calcic plagioclase (labradorite), and...
- aluminium-bearing
minerals of
these fragments provide clues to the
depth of origin.
Calcic plagioclase is
stable to a
depth of 25 km (16 mi).
Between 25 km (16 mi)...
-
Calcium gluconate is the
calcium salt of
gluconic acid and is used as a
mineral supplement and medication. As a
medication it is used by
injection into...
-
present in many
types of
metamorphic rock. Rock
formed almost entirely of
calcic plagioclase feldspar is
known as anorthosite.
Feldspars are also
found in...
