lepidolite
lepidolite and tourmaline crystals from Brazil
lepidolite crystals from Sweden
lepidolite crystals from Sweden
Detailed sheet
lepidolite
Its name comes from the Greek “lepidos” for scale and “lithos” meaning stone, meaning a stone formed of scales stacked in staircase shape.
Discovered in Moravia, Czech Republic, it is very close to another mica called muscovite, and for some it is not really a specific type.
It is from lepidolite in 1861, that a new element called “rubidium” was isolated.
CHEMICAL CHARACTERISTICS
KLi2[(Si,Al)4O10] (F,OH)2
lithium fluoro-silicate
PHYSICAL CHARACTERISTICS
Main color
pink
Other colors
grey, yellow, purple
color due to manganese
Color of streak
white
Luster
pearly, vitreous
Hardness
2.5 to 3.0
Density
2.80 to 2.90
Cleavage
perfect
Fracture
uneven
It disintegrates into flexible sheets like all micas.
OPTICAL PROPERTIES
Transparency
translucent, transparent
Refractive index
1.525 - 1.585
Double refraction
0.018
definite, biaxial (-)
visible double refraction
No
Dispersion
-
Pleochroism
absent
Number of colors
1
Fluorescence
none
CRYSTALS PROPERTIES
tabular, in pseudo-hexagonal layers
crystals system
monoclinic
OTHER INFORMATIONS
Astrological sign
Capricorn, Leo, Taurus
APPROACHING GEMS
Exploited
sites
Present in many deposits, it is often found in beautiful crystals: in the Himalaya Mine, Tourmaline King Mine, San Diego United States, Brazil: Virgem da Lapa and Itinga (yellow variety), in Minas Gerais, but also in Madagascar , Russia, Namibia.
use in jewelry
collection stone cabochon cut
Historical
healing properties
This stone is an excellent insulator, it would also protect from any bad influence and bring calm and serenity. It would also facilitate a quiet sleep.
Other
Gems
Venez visitez
notre site web
voillot-joaillier.fr
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