Gaspéite | Gemopedia

Gaspéite is a bright grass-green to olive or yellowish green gemstone named for the location in Canada where it was first discovered. This stone is commonly seen in carved artistic sculptures, faceted or cut as cabochons and set in jewelry.
Colors
Grass Green
, Olive Green
, Yellowish Green

Gaspéite Classification

Common Name

GaspéIte

Species

GaspéIte

Variety

Colors

grass green, olive green and yellowish green

Alternate Names

Gemstone Groups

Key Separations

RI and appearance.

Comments

Gaspéite has a high nickel content.

Gaspéite Optical Properties

Transparency

Translucent To Opaque

Refractive Index

Over the Limit 1.61-1.81

Birefringence

0.22

Optic Character

uniaxial

Optic Sign

negative

Polariscope Reaction

doubly refractive (DR) or AGG depending on transparency

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

Dispersion

Strength: none

Comments

Gaspéite Chemistry & Crystallography

Chemical Name

Chemical Formula

(Ni,MgFe)CO3

Synthesis

Crystal System

Trigonal

Classification

Carbonate

Nature

Natural

Crystallinity

Crystalline To Aggregate

Comments

Gaspéite Characteristic Physical Properties

Hardness

4.5-5

Streak

yellow-green

Specific Gravity

Toughness

Poor

Inclusions

Luster

Vitreous To Dull

Stability

Fracture

Uneven

Cleavage

Perfect

Comments

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