Strawberry Quartz | Gemopedia

Strawberry quartz is so named because it has a sufficient number of red hematite inclusions to cause a perceived pinkish to reddish body color. While red hematite ribbons are the primary inclusions in strawberry quartz, some gems also contain numerous colorless fluid inclusions and negative crystals, which only add to their desirability and collectability. Mother Nature needed no assistance when creating these beauties and all are 100% natural with no enhancements necessary!
Alternate
Names
Scarlet Quartz
Colors
Colorless With Red Inclusions

Strawberry Quartz Classification

Common Name

Strawberry Quartz

Species

Quartz

Variety

Strawberry Quartz

Colors

Colorless With Red Inclusions

Alternate Names

Scarlet 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

The hematite included quartz from the Cumbria, England mine was called Scarlet quartz. Some stones have been incorrectly called lepidocrocite quartz because the hematite inclusions are often misidentified as lepidocrocite.

Strawberry Quartz Optical Properties

Transparency

Transparent - Translucent

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: Inert
LWUV: Inert

CCF Reaction

Pleochroism

None

Dispersion

Strength: weak fire Value: 0.013

Comments

Strawberry Quartz Chemistry & Crystallography

Chemical Name

silicon dioxide (aka silica)

Chemical Formula

SiO2

Synthesis

Crystal System

Triclinic

Classification

Silicate

Nature

Natural

Crystallinity

Crystalline

Comments

Strawberry Quartz Characteristic Physical Properties

Hardness

7

Streak

White

Specific Gravity

2.64-2.69 Typical:2.66

Toughness

Good

Inclusions

Strawberry quartz will contain hematite inclusions and may included liquid, two-phase and three-phase inclusions, negative crystals, minerals, needles, rutile and iron particles.

Luster

Vitreous

Stability

Good

Fracture

Conchoidal

Cleavage

None

Comments

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