Calsilica | Gemopedia

Also called "rainbow calsilica," this is a man-made material that displays vibrant layers of bold color. It consists of a mixture of calcite, plastic and coloring pigments. This unique stone is often used in jewelry and carvings to show off its distinctive coloration.
Alternate
Names
Rainbow Calsilica
Colors
Blue, Green, Yellow, Orange, Red, Black Stripes

Calsilica Classification

Common Name

Calsilica

Species

NA

Variety

Colors

Blue, Green, Yellow, Orange, Red, Black Stripes

Alternate Names

Rainbow Calsilica

Gemstone Groups

Key Separations

Appearance

Comments

Calsilica Optical Properties

Transparency

Opaque

Refractive Index

Birefringence

Optic Character

Optic Sign

Polariscope Reaction

Aggregate (AGG)

Fluorescence

SWUV: Variable
LWUV: Variable

CCF Reaction

Pleochroism

None

Dispersion

Comments

Calsilica Chemistry & Crystallography

Chemical Name

calcium carbonate + dye and plastic

Chemical Formula

Ca(CO3)+dye and plastic

Synthesis

Crystal System

NA

Classification

Carbonate

Nature

Synthetic

Crystallinity

Aggregate

Comments

Calsilica Characteristic Physical Properties

Hardness

Streak

Specific Gravity

1.88-1.92

Toughness

Inclusions

Calsilica has multicolored stripes or layers of granular material. Occasionally bubbles plastic-like material or bubbles are seen between layers.

Luster

Stability

Fracture

Cleavage

None

Comments

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