Aventurine is a type of quartz. The name, aventurine, is derived from the Italian word for chance. It's said to be the stone that guarded the shields of the Amazons. It promotes prosperity and confidence.
Green aventurine is said to bring good fortune. It also soothes the soul, regulates energy and keeps your heart open and ready to receive. Balances the nervous system and helps with fertility issues. Brings abundance and positivity. Encourages decisive action.
Clears the heart chakra
Birthstone for Cancer
Good for Aries and Leo
Chemical Classification | Silicate |
Chemical Formula | SiO2 with inclusions of mica, hematite, or goethite |
Crystal system | Hexagonal |
Color | Green, brown, yellow, blue, orange, gray |
Streak | White |
Luster | Vitreous |
Transparency | Translucent to opaque |
Occurrence | Brazil, India, Russia, Tanzania, USA |
Formation | Metamorphic, igneous, and sedimentary rocks |
Diaphaneity | Translucent to opaque |
Cleavage | None |
Mohs Hardness | 7 |
Specific Gravity | 2.64 - 2.69 |
Diagnostic Properties | Sparkly metallic sheen, quartz-specific diagnostic properties |
Chemical Composition | (SiO2) with inclusions of mica, hematite, or goethite |
Crystal System | Hexagonal |
Optical Properties | Uniaxial negative |
Refractive Index | 1.544 - 1.553 |
Birefringence | 0.009 |
2V angle | -15° to -27° |
Dispersion | 0.013 |
Other characteristics | Aventurescence due to mica or hematite inclusions |