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Bertrandite
Bertrandite

Howlite
Howlite



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Bertrandite
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Howlite

Bertrandite Vs Howlite

Astrology

Origin

Southern and central Africa
Southern and central Africa

Color

Colorless, Yellow
Blue, Colorless, White

Streak

White
White

For which Rashi?

-
Gemini, Virgo

Planet

-
-

Element of Planets

-
Earth

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
Quan Yin

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.59-2.602.45-2.58
1 7.18
👆🏻

Fracture

-
Conchoidal

Cleavage

{001} Perfect, {110} Distinct, {101} Distinct
None

Mohs Hardness

6-73-3.5
2 10
👆🏻

Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

none.
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

TransparentAnthony et al
-

Refractive Index

1.583-1.6141.583-1.608
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
monoclinic

Birefringence

-99990.019
0 0.296
👆🏻

Clarity

TransparentAnthony et al
-

Benefits

Physical

Neurological

-
Aids in mental clarity and focus

Cardiovascular

Promotes mental clarity
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

Harmony
Calming

Healing

Emotional healing
Emotional healing

Qualities Associated

Creativity
Calming

Bertrandite Vs Howlite Fracture

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

Bertrandite Vs Howlite Luster

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