Saussurite | Gemopedia

Saussurite is a translucent to opaque grayish to yellowish green, (often mottled) aggregate that's often used as a jade simulant for carvings. Containing zoisite, epidote and sodium-rich plagioclase feldspars, it was named after the Swiss naturalist Horace Bndict de Saussure, who originally believed it to be jade.
Colors
Grayish To Yellow-Green

Saussurite Classification

Common Name

Saussurite

Species

Saussurite

Variety

Colors

Grayish To Yellow-Green

Alternate Names

Gemstone Groups

Key Separations

Appearance, RI, spectrum and fluorescence

Comments

Misnomer: jadeSpot readings of 1.56 or 1.70 depending on area tested.

Saussurite Optical Properties

Transparency

Translucent To Opaque

Refractive Index

1.56-1.7

Birefringence

Optic Character

Optic Sign

Polariscope Reaction

Aggregate (AGG)

Fluorescence

SWUV: Inert to moderate red
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Comments

Saussurite Chemistry & Crystallography

Chemical Name

rock composed of green zoisite, scapolite, and/or epidote with white feldspar

Chemical Formula

Synthesis

Crystal System

NA

Classification

Nature

Natural

Crystallinity

Aggregate

Comments

Saussurite Characteristic Physical Properties

Hardness

6.5-7

Streak

Specific Gravity

2.8-3.4 Typical: 3.3

Toughness

Varies

Inclusions

Saussurite has a mottled appearance.

Luster

Vitreous

Stability

Fracture

Granular, Uneven

Cleavage

None

Comments

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