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Astrophyllite
Astrophyllite

Grandidierite
Grandidierite



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Astrophyllite
X
Grandidierite

Astrophyllite Vs Grandidierite

Astrology

Origin

Canada, Russia
Madagascar

Color

Brown, Yellow, Greenish, Brownish, Red
Green

Streak

Brown, 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

3.2-3.42.85-3.00
1 7.18
👆🏻

Fracture

Uneven
Uneven

Cleavage

Perfect on [001] imperfect on [100]
Perfect

Mohs Hardness

37.5
2 10
👆🏻

Chemical Composition

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Optical Properties

Luster

Greasy, Pearly
Vitreous, Pearly

Pleochroism

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
visible

Dispersion

0.120.04
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.678-1.7581.578-1.639
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.0500.037-0.039
0 0.296
👆🏻

Clarity

Translucent
-

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

Supports heart health
-

Respiratory

Excellent
-

Reproductive

-
-

Digestive

-
-

Psychology

Self-Reflection
Wisdom

Healing

Spiritual healing
Physical healing

Qualities Associated

Self-Reflection
Harmony

Astrophyllite Vs Grandidierite Fracture

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

Astrophyllite Vs Grandidierite Luster

A primary knowledge about Astrophyllite vs Grandidierite 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. Astrophyllite exhibits Greasy and Pearly luster. Grandidierite, on other hand, exhibits Vitreous and Pearly luster.