About: Dioptase   Sponge Permalink

An Entity of Type : dbkwik:resource/6IIoeMLPkySiK--1vpcViQ==, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Dioptase is a mineral that usually is found as dark blue green, or emerald green. This rock is a trigonal mineral which forms six sided crystals that are taken over by rhombohedra. The mineral is used in creating gems.

AttributesValues
rdf:type
rdfs:label
  • Dioptase
  • Dioptase
rdfs:comment
  • Dioptase is a mineral that usually is found as dark blue green, or emerald green. This rock is a trigonal mineral which forms six sided crystals that are taken over by rhombohedra. The mineral is used in creating gems.
  • Dioptase, also known as diopside, was a small semi-precious stone that had unusual healing properties.
  • Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is CuSiO3·H2O (also reported as CuSiO2(OH)2). It has a hardness of 5, the same as tooth enamel. Its specific gravity is 3.28–3.35, and it has two perfect and one very good cleavage directions. Additionally, dioptase is very fragile and specimens must be handled with great care. It is a trigonal mineral, forming 6-sided crystals that are terminated by rhombohedra.
sameAs
dcterms:subject
cleave
  • Perfect in three directions
dbkwik:ceramica/pr...iPageUsesTemplate
dbkwik:forgotten-r...iPageUsesTemplate
dbkwik:forgottenre...iPageUsesTemplate
Category
opticalprop
  • Uniaxial
mohs
  • 5(xsd:integer)
Gravity
  • 328(xsd:integer)
Name
  • Dioptase
  • Dioptase
Type
symmetry
  • Trigonal Rhombohedral
Caption
  • Faceted dioptase gem.
  • Dioptase from Altyn Tübe, Kazakhstan, the type locality
dbkwik:geology/pro...iPageUsesTemplate
OtherNames
  • Diopside
streak
  • Green
  • Green
formula
  • CuSiO3·H2O
System
Hard
  • 5(xsd:integer)
Color
  • Dark blue green, emerald green
RM
  • Mineral
unit cell
  • a = 14.566 Å, c = 7.778 Å; Z = 18
tenacity
  • Brittle
cleavage
  • Perfect in three directions
habit
  • Six sided prisms terminated by rhombohedrons to massive
Pro
  • Die-op-tahs-ay
diaphaneity
  • Transparent to translucent
fracture
  • Conchoidal
refractive
  • nω = 1.652 - 1.658 nε = 1.704 - 1.710
luster
  • Vitreous
birefringence
  • δ = 0.052
value1e
  • 50(xsd:integer)
value2e
  • 50(xsd:integer)
abstract
  • Dioptase is a mineral that usually is found as dark blue green, or emerald green. This rock is a trigonal mineral which forms six sided crystals that are taken over by rhombohedra. The mineral is used in creating gems.
  • Dioptase, also known as diopside, was a small semi-precious stone that had unusual healing properties.
  • Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is CuSiO3·H2O (also reported as CuSiO2(OH)2). It has a hardness of 5, the same as tooth enamel. Its specific gravity is 3.28–3.35, and it has two perfect and one very good cleavage directions. Additionally, dioptase is very fragile and specimens must be handled with great care. It is a trigonal mineral, forming 6-sided crystals that are terminated by rhombohedra.
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