minerals sir jero Flashcards
what is the same skeme of boundstone in folks?
biolithite
pink-coloured titanite)
greenovite
a deep-violet omphacitic clinopyroxene)
violan
most important and famous Mn occurrence of the Piemonte nappe
belongs to the lower part of the Piedmont Jurassic ophiolitic nappe, of oceanic origin
Praborna
synonym of aluminoceladonite)
leucophyllite
ntermediate between leucophyllite (now a synonym of aluminoceladonite) and muscovite.
Alurgite
manganandalusite, is a Mn-rich variety of andalusite, with deep green colors.
viridine
an be accompanied by lizardite which can form the major component in pseudomorphs after orthopyroxene.
Antigorite
forms as a retrograde product rimming relict orthopyroxenes and olivine, and as an accessory mineral in cordierite-bearing gneisses and schists.
retrograde metamorphic mineral derived from ultramafic rocks along with serpentinite.
formed by the breakdown of talc in ultramafic rocks in the presence of water and carbon dioxide as a prograde metamorphic reaction.
product of metamorphism of magnesium-rich rocks,
anthophyllite
etamorphic assemblages of ultramafic rocks containing anthophyllite are indicative of at least
greenschist facies metamorphism
A fibrous variety of Brucite is called
nemalite
common low-temperature hydrothermal mineral in metamorphosed limestones and chlorite schists and is often found serpentinized dunites.
common alteration product of periclase, which is commonly formed in metamorphosed dolomites.
brucite
the lilac miracle of Siberia”
main mineralogical discovery of the second half of the 20th century”
charoite
Chlorites end members
Clinochlore: (Mg5Al)(AlSi3)O10(OH)8
♦ Chamosite: (Fe5Al)(AlSi3)O10(OH)8
♦ Nimite: (Ni5Al)(AlSi3)O10(OH)8
♦ Pennantite: (Mn,Al)6(Si,Al)4O10(OH)8
Manganese-rich chloritoid is known as
ottrelite
magnesium-rich variety is called
sismondine
formed by the reaction of copper hydroxy carbonate with siliceous acid according to the reaction:
chrysocolla
Fe-rich cordierite
sekaninaite
characterized by hexagonal rings of six silicate tetrahedral (Si6O18)12-, where one-half of the oxygen ions of each SiO4 tetrahedron are bridging oxygens shared with adjoining tetrahedral in the ring.
Cordierite
cordierite may well persist as an important mineral in various mineral associations until sediments are literally fused to glass
buchite rocks)
high-grade rock cordierite is present
indialite (the high grade polymorph)
The alteration product is usually a fine-grained, yellow-greenish aggregate (Chlorite+biotite+muscovite) called
Pinite.
Al2O3
corundum
padparadscha
corundum-pink orange