Blue Moon Quartz | Gemopedia

This name refers to quartz gems naturally included with a mist of fine dumortierite crystals. These miniscule blue inclusions give colorless quartz a "mysterious" blue sheen.
Alternate
Names
Milky Quartz
Colors
White, Very Light Gray With Blue Sheen

Blue Moon Quartz Classification

Common Name

Blue Moon Quartz

Species

Quartz

Variety

Blue Moon Quartz

Colors

White, Very Light Gray With Blue Sheen

Alternate Names

Milky Quartz

Gemstone Groups

Key Separations

Refractive index, appearance, birefringence, optic character and optic figure.

Comments

Milky quartz with a blue sheen.

Blue Moon Quartz Optical Properties

Transparency

Translucent - Opaque

Refractive Index

1.544-1.553
Tolerance:very constant

Birefringence

0.009

Optic Character

Uniaxial

Optic Sign

Positive

Polariscope Reaction

Doubly Refractive (DR)

Fluorescence

SWUV:
LWUV:

CCF Reaction

Pleochroism

None

Dispersion

Comments

Blue Moon Quartz Chemistry & Crystallography

Chemical Name

silicon dioxide (aka silica)

Chemical Formula

SiO2

Synthesis

Crystal System

Trigonal

Classification

Silicate

Nature

Natural

Crystallinity

Crystalline to Aggregate

Comments

Blue Moon Quartz Characteristic Physical Properties

Hardness

7

Streak

White

Specific Gravity

2.64-2.69 Typical:2.66

Toughness

Good

Inclusions

Blue moon quartz has CO2 or H2O inclusions that give it milky appearance.

Luster

Vitreous

Stability

Good

Fracture

Conchoidal

Cleavage

None

Comments

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