dioptase
dioptase crystals from Kazakhstan
dioptase crystal from Namibia
liquid and solid type inclusions
black solid like inclusions
Detailed sheet
dioptase
It has long been confused with emerald with whom shares the same color, but it was identified in 1801 as a specific species by René Just Haüy.
Its name comes from the Greek, recalls that its cleavage planes are visible through the crystal, which was observed by Haüy.
CHEMICAL CHARACTERISTICS
CuSiO2(OH)2
copper cyclosilicate mineral
PHYSICAL CHARACTERISTICS
Main color
green
also bluish green
Color of streak
green
Luster
vitreous
Hardness
5.0 to 0.0
Density
3.30 to 3.35
Cleavage
perfect
Fracture
uneven
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.645 - 1.710
Double refraction
0.051
definite uniaxial positive
visible double refraction
No
Dispersion
0.035(0.020)
Pleochroism
weak
Number of colors
2
dark green, light green
Absorption spectrum
550 - 465
dioptase spectrum system
Fluorescence
none
CRYSTALS PROPERTIES
short prisms, fragile, sometimes twinned, colorful
crystals system
trigonal
OTHER INFORMATIONS
Astrological sign
Capricorn, Leo, Pisces
APPROACHING GEMS
Exploited
sites
The first dioptases arrived in the west from the Kyrgyz steppes.
It is a mineral widely spread where there are copper deposits but rarely found in large well-formed crystals: Democratic Republic of Congo, Zaire (Katanga) above, Namibia (Tsumeb), Chile, USA, Peru, South West Africa, Russia …
use in jewelry
It is rarely cut into cabochons or faceted but kept rough and protected in a frame of gold or precious metal.
Daily care
and precautions
Sensitive to shocks and household products, to wash very quickly, only with soapy water, and rinse with clean water and dry immediately.
Historical
healing properties
It would release the emotional knots and help regain sensitivity, therefore suitable for disillusioned people, wounded in pride that love pains made insensitive, hardened. Since ancient times it was confused with the emerald for its color, the same it was called “ medicinal emerald “ because its copper content made it possible to prepare ointments that would have fungicidal properties … it is even awarded an invigorating action on the heart energy. Helping to solve some problems, it is seen as bringing joy and well-being.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo consectetur adipiscing elit. Ut elit tellus, luctus nec.
