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Boulder Opal
Boulder Opal

Coral
Coral



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Boulder Opal
X
Coral

Boulder Opal Vs Coral

Astrology

Origin

Australia
Southern and central Africa

Color

White, Colorless, Blue, Red, Green, Yellow, Violet
White, Blue

Streak

-
-

For which Rashi?

-
Pisces

Planet

-
Neptune

Element of Planets

-
Water

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Venus

Not to wear with

-
-

Powers

-
Healing, Protection

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

1.98-2.252.60-2.70
1 7.18
👆🏻

Fracture

Conchoidal
Irregular

Cleavage

None
None

Mohs Hardness

5-6.53-4
2 10
👆🏻

Chemical Composition

SiO 2 + H 2OUlrich Henn and Claudio C.
CaCO 3Ulrich Henn and Claudio C.

Optical Properties

Luster

-
-

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent, Translucent
Translucent

Refractive Index

1.370-1.4701.486-1.658
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-99990.160-0.172
0 0.296
👆🏻

Clarity

Transparent
Translucent

Benefits

Physical

Neurological

-
-

Cardiovascular

Supports heart health
Enhances intuition and psychic abilities

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Creativity
Emotional balance

Healing

Emotional healing
Emotional healing

Qualities Associated

Creativity
Emotional Balance

Boulder Opal Vs Coral Fracture

Fracture is an important parameter when you compare Boulder Opal and Coral Physical Properties. It is necessary to understand the significance of these properties, before you compare Boulder Opal Vs Coral fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Boulder Opal is Conchoidal. Coral fracture is Irregular.

Boulder Opal Vs Coral Luster

A primary knowledge about Boulder Opal vs Coral luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria.