Eilat Stone | Gemopedia

The rich greens of eilat stone comes from it being a unique combination of various copper-bearing minerals including chrysocolla, malachite, azurite and turquoise. This stone is the national stone of Israel and known as King Solomon stone, as it comes from what is storied as King Solomon's mines in the Timna Valley of Israel.
Alternate
Names
King Solomon Stone
Colors
Blue To Green

Eilat Stone Classification

Common Name

Eilat Stone

Species

NA

Variety

Colors

Blue To Green

Alternate Names

King Solomon Stone

Gemstone Groups

Key Separations

Appearance

Comments

National stone of Israel and must come from Israel to be true eilat stone. Mixture of chrysocolla, malachite, pseudomalachite and azurite.If the stone is tested in a chrysocolla area the RI will be 1.50 or 1.61 if tested in a malachite area. The malachite RI can blink from 1.66 to OTL and birefringence of 0.025.

Eilat Stone Optical Properties

Transparency

Semitransparent - Opaque

Refractive Index

1.5-1.61

Birefringence

0.025

Optic Character

NA

Optic Sign

Polariscope Reaction

Aggregate (AGG)

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Strength: none

Comments

Eilat Stone Chemistry & Crystallography

Chemical Name

Chemical Formula

Synthesis

Crystal System

NA

Classification

Rock

Nature

Natural

Crystallinity

Aggregate

Comments

Eilat Stone Characteristic Physical Properties

Hardness

Streak

Specific Gravity

2.8-3.2

Toughness

Inclusions

Eilat stone has a variegated and mottled appearance.

Luster

Vitreous

Stability

Fracture

Cleavage

None

Comments

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