Hyalophane
Hyalophane or jaloallofane is a crystalline mineral, part of the feldspar group of tectosilicates. It is considered a barium-rich potassium feldspar. Its chemical formula is (K,Ba)[Al(Si,Al)Si2O8], and it has a hardness of 6 – 6½. The name hyalophane comes from the Greek hyalos, meaning "glass", and phanos meaning "to appear". Hyalophane has sometimes been used as a gemstone.
primaryTopic
Hyalophane
Hyalophane or jaloallofane is a crystalline mineral, part of the feldspar group of tectosilicates. It is considered a barium-rich potassium feldspar. Its chemical formula is (K,Ba)[Al(Si,Al)Si2O8], and it has a hardness of 6 – 6½. The name hyalophane comes from the Greek hyalos, meaning "glass", and phanos meaning "to appear". Hyalophane has sometimes been used as a gemstone.
has abstract
Hyalophan, auch als Bariumfeld ...... oder rötliche Farbe annehmen.
@de
Hyalophane or jaloallofane is ...... times been used as a gemstone.
@en
Lo ialofane è una varietà di ortoclasio ricca di bario.
@it
Гиалофан — минерал, алюмосилик ...... оватым оттенком, реже красные.
@ru
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Wikipage page ID
11,991,996
Wikipage revision ID
741,591,240
birefringence
Caption
hyalophane on matrix
class
cleavage
{001} perfect, {010} imperfect
color
Colorless, yellow, white, red
diaphaneity
Transparent to translucent
dispersion
formula
fracture
gravity
habit
Crystalline – fine – occurs as ...... crystals forming large masses
luster
molweight
opticalprop
refractive
nα = 1.542, nβ = 1.545, nγ = 1.547
symmetry
system
tenacity
twinning
Commonly simple twins according to the Carlsbad, Manebach, or Baveno laws
unit cell
a = 8.52 Å, b = 12.95 Å,
c = 7.14 Å; β = 116°; Z = 4
comment
Hyalophan, auch als Bariumfeld ...... andteilen des Minerals stehen.
@de
Hyalophane or jaloallofane is ...... times been used as a gemstone.
@en
Lo ialofane è una varietà di ortoclasio ricca di bario.
@it
Гиалофан — минерал, алюмосилик ...... оватым оттенком, реже красные.
@ru
label
Hyalophan
@de
Hyalophane
@en
Ialofane
@it
Гиалофан
@ru
wasDerivedFrom
isPrimaryTopicOf
name
Hyalophane
@en