Fire Opal

Mottramite

Fire Opal Vs Mottramite

Fire Opal

Mottramite

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Astrology

Origin

USA

Color

Red

Brown, Green, Yellow

Streak

Green, Brownish

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Soluble

Durability

Specific Gravity

1.97-2.225.9

1 7.18

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Fracture

Conchoidal

Sub-Conchoidal

Cleavage

None

None observed

Mohs Hardness

6-6.53

2 10

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Chemical Composition

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references

PbCu(VO4)(OH)

Optical Properties

Luster

Greasy

Pleochroism

Visible X=Y= canary yellow to greenish yellow

Dispersion

0.010.04

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.370-1.4702.170

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

-99990.150

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Passion

Confidence

Healing

Emotional healing

Qualities Associated

Passion

Transformation

Fire Opal Vs Mottramite Fracture

Fracture is an important parameter when you compare Fire Opal and Mottramite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fire Opal Vs Mottramite 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 Fire Opal is Conchoidal. Mottramite fracture is Sub-Conchoidal.

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Fire Opal Vs Mottramite Luster

A primary knowledge about Fire Opal vs Mottramite 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. Mottramite, on other hand, exhibits Greasy luster.