Smoky quartz
Smoky quartz is a grey, translucent variety of quartz. It ranges in clarity from almost complete transparency to a brownish-gray crystal that is almost opaque. Some can also be black. Like other quartz gems, it is a silicon dioxide crystal. The smoky colour results from free silicon, formed from the silicon dioxide by natural irradiation.
Gemstone
primaryTopic
Smoky quartz
Smoky quartz is a grey, translucent variety of quartz. It ranges in clarity from almost complete transparency to a brownish-gray crystal that is almost opaque. Some can also be black. Like other quartz gems, it is a silicon dioxide crystal. The smoky colour results from free silicon, formed from the silicon dioxide by natural irradiation.
has abstract
Il quarzo affumicato o quarzo fumé è una varietà di quarzo.
@it
Kwarc dymny – minerał, odmiana ...... kryształu górskiego i morionu.
@pl
Le quartz fumé (anciennement ( ...... rain dans lequel on le trouve.
@fr
Quartzo fumado (no Brasil, qua ...... ar, Rússia, Escócia e Ucrânia.
@pt
Rauchquarz (oder Morion) ist e ...... dennoch relativ oft zu finden.
@de
Rookkwarts is een kwarts-varië ...... rianten worden morion genoemd.
@nl
Smoky quartz is a grey, transl ...... ioxide by natural irradiation.
@en
Раухтопаз (от нем. Rauch — дым ...... не имеет отношения к топазам.
@ru
スモーキークォーツ（smoky quartz）は、水晶の一種で、石英グループに属する鉱物の変種。煙水晶（けむりすいしょう）ともいう。
@ja
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Wikipage page ID
Wikipage revision ID
744,865,992
birefringence
Caption
category
cleavage
{0110} Indistinct
colour
Brown to grey, opaque
dana
diaphaneity
Transparent to nearly opaque
fracture
gravity
lattice
lustre
Vitreous – waxy to dull when massive
opticalprop
Other
Piezoelectric, may be triboluminescent, chiral
pleochroism
refractive
nε = 1.552–1.554
nω = 1.543–1.545
solubility
Insoluble at STP; 1 ppmmass at ...... mass at 500 °C and 1500 lb/in2
symmetry
system
α-quartz: trigonal trapezohedral class 3 2; β-quartz: hexagonal 622
tenacity
twinning
Common Dauphine law, Brazil law and Japan law
unit cell
a = 4.9133 Å, c = 5.4053 Å; Z=3
subject
hypernym
comment
Il quarzo affumicato o quarzo fumé è una varietà di quarzo.
@it
Kwarc dymny – minerał, odmiana ...... stępują inkluzje igieł rutylu.
@pl
Le quartz fumé (anciennement ( ...... rain dans lequel on le trouve.
@fr
Quartzo fumado (no Brasil, qua ...... ar, Rússia, Escócia e Ucrânia.
@pt
Rauchquarz (oder Morion) ist e ...... dennoch relativ oft zu finden.
@de
Rookkwarts is een kwarts-varië ...... rianten worden morion genoemd.
@nl
Smoky quartz is a grey, transl ...... ioxide by natural irradiation.
@en
Раухтопаз (от нем. Rauch — дым ...... не имеет отношения к топазам.
@ru
スモーキークォーツ（smoky quartz）は、水晶の一種で、石英グループに属する鉱物の変種。煙水晶（けむりすいしょう）ともいう。
@ja
label
Kwarc dymny
@pl
Quartz fumé
@fr
Quartzo fumado
@pt
Quarzo affumicato
@it
Rauchquarz
@de
Rookkwarts
@nl
Smoky quartz
@en
Раухтопаз
@ru
スモーキークォーツ
@ja
sameAs
wasDerivedFrom
isPrimaryTopicOf
name
Smoky quartz
@en