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Colemanite
Colemanite

Bertrandite
Bertrandite



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Colemanite
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Bertrandite

Colemanite Vs Bertrandite

Astrology

Origin

Southern and central Africa
Southern and central Africa

Color

Colorless, gray, White
Colorless, Yellow

Streak

White
White

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.40-2.422.59-2.60
1 7.18
👆🏻

Fracture

-
-

Cleavage

{010} Perfect, {001} Distinct
{001} Perfect, {110} Distinct, {101} Distinct

Mohs Hardness

4.56-7
2 10
👆🏻

Chemical Composition

Ca 2B 6O 11 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
none.

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

Transparent
TransparentAnthony et al

Refractive Index

1.584-1.6151.583-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

0.028-0.030-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentAnthony et al

Benefits

Physical

Neurological

-
-

Cardiovascular

-
Promotes mental clarity

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Imagination
Harmony

Healing

Emotional healing
Emotional healing

Qualities Associated

Harmony
Creativity

Colemanite Vs Bertrandite Fracture

Fracture is an important parameter when you compare Colemanite and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Colemanite Vs Bertrandite 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.

Colemanite Vs Bertrandite Luster

A primary knowledge about Colemanite vs Bertrandite 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. Colemanite exhibits Vitreous luster. Bertrandite, on other hand, exhibits Vitreous luster.