Staurolite
Staurolite is a red brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe2+2Al9O6(SiO4)4(O,OH)2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium.
Mineral
primaryTopic
Staurolite
Staurolite is a red brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe2+2Al9O6(SiO4)4(O,OH)2. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium.
has abstract
Das Mineral Staurolith (Kreuzs ...... auner bis braunschwarze Farbe.
@de
Estaurolite é um mineral de co ...... outros minerais metamórficos.
@pt
Het mineraal stauroliet is een ...... el een tweeling genoemd wordt.
@nl
La estaurolita es un mineral d ...... la prioridad de Delametherie.
@es
La staurolite ou staurotide es ...... uvent atteindre jusqu'à 12 cm.
@fr
La staurolite è un minerale, s ...... l Trentino e della Valtellina.
@it
Staurolit (granatyt) – minerał ...... s, co oznacza kamień krzyżowy.
@pl
Staurolite is a red brown to b ...... can substitute for aluminium.
@en
Ставроли́т (от др.-греч. σταυρ ...... генезис метаморфических пород.
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colour
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Wikipage page ID
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740,120,929
2V
Measured: 88°, Calculated: 84° to 88°
birefringence
δ = 0.009 - 0.015
Caption
Staurolite from Pestsovye Keiv ...... gion, Russia, 2.5 x 2.2 x 1 cm
category
class
cleavage
Distinct on {010}
diaphaneity
Transparent to opaque
dispersion
formula
fracture
gravity
habit
Commonly in prismatic crystals
luster
Subvitreous to resinous
opticalprop
pleochroism
X = colorless; Y = pale yellow; Z = golden yellow
refractive
nα = 1.736 - 1.747 nβ = 1.740 - 1.754 nγ = 1.745 - 1.762
streak
White to grayish
symmetry
system
tenacity
twinning
Commonly as 60° twins, less common as 90° cruciform twins
unit cell
a = 7.86 Å, b = 16.6 Å
c = 5.65 Å; β = 90.45°; Z = 2
subject
comment
Das Mineral Staurolith (Kreuzs ...... nkstaurolith: Zn2Al9Si4O23(OH)
@de
Estaurolite é um mineral de co ...... outros minerais metamórficos.
@pt
Het mineraal stauroliet is een ...... el een tweeling genoemd wordt.
@nl
La estaurolita es un mineral d ...... an siempre en la misma medida.
@es
La staurolite ou staurotide es ...... uvent atteindre jusqu'à 12 cm.
@fr
La staurolite è un minerale, s ...... l Trentino e della Valtellina.
@it
Staurolit (granatyt) – minerał ...... s, co oznacza kamień krzyżowy.
@pl
Staurolite is a red brown to b ...... can substitute for aluminium.
@en
Ставроли́т (от др.-греч. σταυρ ...... генезис метаморфических пород.
@ru
label
Estaurolita
@es
Estaurolita
@pt
Stauroliet
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Staurolit
@pl
Staurolite
@en
Staurolite
@fr
Staurolite
@it
Staurolith
@de
Ставролит
@ru
sameAs
wasDerivedFrom
depiction
isPrimaryTopicOf
name
Staurolite
@en