Lazulite Vs Bertrandite
Origin
Brazil, Southern and central Africa
Southern and central Africa
Color
Blue, Green, Black
Colorless, Yellow
For which Rashi?
Gemini, Sagittarius
-
Specific Gravity
3.04-3.17
2.59-2.60
Cleavage
{001} Indistinct, {???} Indistinct
{001} Perfect, {110} Distinct, {101} Distinct
Chemical Composition
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
none.
Transparency
Transparent, Translucent
TransparentAnthony et al
Refractive Index
1.604-1.646
1.583-1.614
Crystal System
monoclinic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.031-0.036
-9999
Clarity
Transparent
TransparentAnthony et al
Neurological
Balances digestive system and reduces bloating
-
Cardiovascular
-
Promotes mental clarity
Digestive
Supports digestive health
-
Psychology
Clarity
Harmony
Healing
Emotional healing
Emotional healing
Qualities Associated
Psychic Abilities
Creativity
Lazulite Vs Bertrandite Fracture
Fracture is an important parameter when you compare Lazulite and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Lazulite 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. Fracture observed in Lazulite is Uneven.
Lazulite Vs Bertrandite Luster
A primary knowledge about Lazulite 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. Bertrandite, on other hand, exhibits Vitreous luster.