Cervandonite
Cervandonite is a rare arsenosilicate mineral. It has a chemical formula (Ce,Nd,La)(Fe3+,Fe2+,Ti4+,Al)3SiAs(Si,As)O13 or (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH). It has a monoclinic crustal structure with supercell (Z=6), the crystal structure was established as a trigonal subcell, with space group R3m and a = 6.508(1)Ǻ, c = 18.520(3) Ǻ, V 679.4(2) Ǻ3, and Z=3. It was first described by Buhler Armbruster in 1988, but it has proven to be problem due to the extreme scarcity of single crystals and its unusual replacement of silicon and arsenic. Cervandonite is named after the location where it was first described, Pizzo Cervandone (Scherbadung), Italy in the Central Alps.
Link from a Wikipage to another Wikipage
primaryTopic
Cervandonite
Cervandonite is a rare arsenosilicate mineral. It has a chemical formula (Ce,Nd,La)(Fe3+,Fe2+,Ti4+,Al)3SiAs(Si,As)O13 or (Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH). It has a monoclinic crustal structure with supercell (Z=6), the crystal structure was established as a trigonal subcell, with space group R3m and a = 6.508(1)Ǻ, c = 18.520(3) Ǻ, V 679.4(2) Ǻ3, and Z=3. It was first described by Buhler Armbruster in 1988, but it has proven to be problem due to the extreme scarcity of single crystals and its unusual replacement of silicon and arsenic. Cervandonite is named after the location where it was first described, Pizzo Cervandone (Scherbadung), Italy in the Central Alps.
has abstract
Cervandonita-(Ce) silikato motako minerala da.
@eu
Cervandonite is a rare arsenos ...... g), Italy in the Central Alps.
@en
La cervandonita-(Ce) és un min ...... tat tipus per aquesta espècie.
@ca
La cervandonite-(Ce) è un soro ...... nel preparco dell'alpe Devero.
@it
Wikipage page ID
25,269,913
page length (characters) of wiki page
Wikipage revision ID
1,000,988,081
Link from a Wikipage to another Wikipage
caption
Cervandonite is a classic and very sought after mineral from Binntal.
@en
category
cleavage
{001} Indistinct
@en
color
Black
@en
diaphaneity
Translucent to opaque
@en
fracture
Conchoidal
@en
gravity
habit
Aggregates and rosettes of tabular crystals
@en
luster
Adamantine
@en
name
Cervandonite
@en
opticalprop
Biaxial
@en
pleochroism
Yellowish, reddish brown to black
@en
refractive
nα = 1.990 nγ = 2.000
@en
streak
Brownish black
@en
symmetry
system
tenacity
Brittle
@en
wikiPageUsesTemplate
hypernym
comment
Cervandonita-(Ce) silikato motako minerala da.
@eu
Cervandonite is a rare arsenos ...... g), Italy in the Central Alps.
@en
La cervandonita-(Ce) és un min ...... tat tipus per aquesta espècie.
@ca
La cervandonite-(Ce) è un soro ...... nel preparco dell'alpe Devero.
@it
label
Cervandonita-(Ce)
@ca
Cervandonita-(Ce)
@eu
Cervandonite
@en
Cervandonite-(Ce)
@it
wasDerivedFrom
isPrimaryTopicOf
name
Cervandonite
@en