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Hornblende is a
complex inosilicate series of minerals. It is not a
recognized mineral in its own right, but the name is used as a
general or
field term...
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Hornblende gabbro is an
intrusive rock
similar to
normal gabbro (gabbro
sensu stricto). In the QAPF
classification it
falls within the
gabbro field, in...
- is
composed predominantly of sodium-rich
plagioclase plus
pyroxene or
hornblende.
Andesite is the
extrusive equivalent of
plutonic diorite. Characteristic...
- Ferro-ferri-
hornblende is an amphibole-supergroup
mineral with the
formula ☐Ca2(Fe2+4Fe3+)(Si7Al)O22(OH)2. It
contains essential vacancy (☐). It was discovered...
- also
extends towards hornblende and arfvedsonite.
There is not a
continuous series between calcic clinoamphiboles, such as
hornblende, and low-calcium amphiboles...
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Schist (/ˈʃɪst/ SHIST) is a medium-grained
metamorphic rock
showing pronounced schistosity (named for the rock). This
means that the rock is
composed of...
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silicate minerals plagioclase feldspar (typically andesine), biotite,
hornblende, and
sometimes pyroxene. The
chemical composition of
diorite is intermediate...
-
granular aggregates of
clear green hornblende: in fact the
original structure disappears. In
Norway scapolite-
hornblende rocks have long been
known at Ødegården...
- (/æmˈfɪbəlaɪt/) is a
metamorphic rock that
contains amphibole,
especially hornblende and actinolite, as well as
plagioclase feldspar, but with
little or no...
- less than 5% each of
pyroxene or
hornblende.
Hornblende gabbro is
composed almost entirely of
plagioclase and
hornblende, with less than 5% each of pyroxene...
