Conundrum Quartz | Gemopedia

While rock crystal quartz is easily identifiable, conundrum quartz is called so because it contains a mysterious blend of up to 7 different types of mineral inclusions. Looking into this crystal, you may think that you're taking in a view from outer space! These unique gems are a treat to collectors with their varied, sundry mix of mineral inclusions creating a completely different look for each stone. Take a loupe or microscope to these gems, and explore the confounding menagerie within.
Alternate
Names
Sagenitic Quartz
Colors
Colorless, Purple, Brown With Various Colored Inclusions

Conundrum Quartz Classification

Common Name

Conundrum Quartz

Species

Quartz

Variety

Conundrum Quartz

Colors

Colorless, Purple, Brown With Various Colored Inclusions

Alternate Names

Sagenitic Quartz

Gemstone Groups

Key Separations

Refractive index, appearance, birefringence, optic character and optic figure. A bull's-eye optic figure is determinative for quartz; may also show Airy's spiral optic figure and Brazil-law twinning under crossed polarizing filters.

Comments

Conundrum Quartz Optical Properties

Transparency

Transparent - Translucent

Refractive Index

1.544-1.553
Tolerance:very constant

Birefringence

0.009

Optic Character

Biaxial

Optic Sign

Positive

Polariscope Reaction

Doubly Refractive (DR)

Fluorescence

SWUV: Inert
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Strength: weak fire Value: 0.013

Comments

Conundrum 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

Conundrum Quartz Characteristic Physical Properties

Hardness

7

Streak

White

Specific Gravity

2.64-2.69 Typical:2.66

Toughness

Good

Inclusions

Conundrum quartz can contian liquid, two-phase and three-phase inclusions, negative crystals, minerals, needles, rutile, iron particles, cacoxenite, goethite and hematite. Stones will contain multiple mineral inclusions.

Luster

Vitreous

Stability

Good

Fracture

Conchoidal

Cleavage

None

Comments

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