Amazonite

Birthstone: March
Chakra: Throat, Heart
Element: Water
Known As: Stone of Success & Abundance
Planet: Uranus
Rarity: Uncommon
Resonant Number: 5
Zodiac: Virgo

Category: Tectosilicate
Chemical Formula: KAlSi₃O₈
Crystal Class: Silicates
Crystal System: Triclinic
Dana Classification: 76.01.01.05
Empirical Formula: KAlSi₃O₈
Name: Amazonite
Strunz Classification: 09.FA.30
Synonym: Green Amazonstone, Microcline

Birefringence: -0.008
Cleavage: {001} Perfect, {010} Good
Common Colors: Blue, Green, Light Blue
Crystal Habit: Prismatic
Diaphaneity: Translucent, Opaque
Formula Mass: 278.33 gm
Fracture: Uneven
Luster: Vitreous (Glassy)
Mohs Hardness: 6 - 6.5
Pleochroism: Absent
Refractive Index: 1.522-1.530
Specific Gravity: 2.56-2.58
Streak: White
Tenacity: Brittle