scapolite
violet crystal of scapolite from Pakistan
mauve scapolite crystal from Afghanistan
scapolite crystal from Madagascar
meionite crystal from Madagascar
pink marialite crystals from Mogok in Burma
pink marialite from Mogok in Burma oval cut
pink marialite form Mogok in Burma round cut
violet scapolite from Mogok in Burma cushion cut
inclusions of spread metal oxides
liquid like inclusions
solid inclusions in needles
Detailed sheet
scapolite
It owes its name to its prismatic facies (from the Greek “skapos” rod and “lithos”, stone) and designates an isomorphic series going from sodic marialite to calcic meionite.
The members of this series are the Wernerite, the Dipyre, the Meionite, the Marialite. The Wernerite, which is at the center of this series is named after Werner,professor of mineralogy at Freiberg in Germany in the late eighteenth century.
Petschite, the purple variety, is a discovery of the 1970s in Tanzania. It can also present a speckle effect “cat’s eye” type.
The yellow variety, meionite, has refractive indices (up to 1,600), the birefringence (0.030 to 0.038), the density, the highest of his family.
CHEMICAL CHARACTERISTICS
Na4[Al3Si9O24]Cl à Ca4[Al6Si6O24](CO3)
complex alumino silicate
PHYSICAL CHARACTERISTICS
Main color
yellow
Other colors
brown, colourless, pink, purple
Color of streak
white
Luster
vitreous
Hardness
5.5 to 6.0
Density
2.55 to 2.75
Cleavage
good
Fracture
conchoidal
easy cleavage
OPTICAL PROPERTIES
Transparency
transparent
Refractive index
1.540 - 1.580
Double refraction
0.006
variable, marialite has a low birefringence, uniaxial negative
visible double refraction
Yes
Dispersion
0.017
Pleochroism
weak
Number of colors
2
colorless, yellow or pink, depending on the general color
Absorption spectrum
663 - 652
for the pink
Fluorescence
variable
pink, orange or red under short UV rays
Inclusions
rutile needles, fine dotted channels, metal oxides
CRYSTALS PROPERTIES
elongated prismatic terminated by a pyramid
crystals system
tetragonal
OTHER INFORMATIONS
Astrological sign
Aries, Leo, Sagittarius
APPROACHING GEMS
Exploited
sites
It is found in France : in Pouzac (Hautes Pyrenees), Seix (Ariège), Sri Lanka (the most famous), Mogok in Burma, Brazil, Canada, Madagascar, Tanzania, Pakistan, Afghanistan.
use in jewelry
It is a stone sometimes used in jewelry but its brittleness limits its use. Varieties of a beautiful purplish or blue color are popular.
Daily care
and precautions
wash with water and dish soap, rinse with clear water and dry
imitations and
treatments
It can be irradiated to obtain a purple or violet color starting from yellow or colorless crystals.
But the color is not stable over time.
Historical
healing properties
This yellow stone would help resolve problems and make decisions.
It would also help finding solutions for many orientation problems, both geographically and spiritually. It would strengthen the logical way of thinking, the ability to synthesize, the Cartesian thinking. It would help to solve puzzles.
Pink or purple varieties are rather active in the resolutions of relational, love and spiritual difficulties. Associated with the yellow variety in the third eye chakra or coronal, it would enhance spiritual understanding.
Other
Gems
Venez visitez
notre site web
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