Epidotiitti Burmasta

Epidotiitti Burmasta
Epidotiitti Burmasta
Tuotetta rajoitettu erä.
$ 21.49
Saatavuus Varastossa
Tuotenumero 540009

Epidotiitti / epidote 

Alkuperä (todennäköinen) : Burma

Paino ( ct noin ) : 4,3

Mitat ( mm noin ) : 12 x 10 x 4

Hionta : viistehiottu,

Puhtaus : opaque

                       Erinomainen       Erittäin hyvä           Hyvä       ”kakkosluokkaa”

Hionta                                                                                      X

Loisto                                                                                      X

Väri                                                    X

Ominaista : harvinainen musta läpinäkymätön Burman epidootti

hakusanoja: epidote,epidotiitti,musta 

The dark brownish-green color or pistachio-green color of epidote is characteristic of the mineral and gives the mineral its’ alternative name – pistacite. Closely related to zoisite which is orthorhombic, epidote is a calcium aluminum silicate with some iron, Ca2(Fe,Al) 3(SiO4)3(OH). The mineral crystallizes in the monoclinic system with vertically striated crystals that seldom display distinct terminations. Epidote is strongly pleochroic the colors being green, brown, and yellow. Epidote is a fairly common mineral and is found at many places in the alps.

Known Facts
Color Key:Green, brown, yellow.
Refractive Index::1.736 - 1.770
Chemical Composition:Calcium aluminum silicate
Crystal Group:Monoclinic
Ocurrence:Austria, Switzerland, France, Czechoslovakia, Norway, USA, Mexico, Kenya, Mali.