Entry № 031
Astrophyllite
Hydrated Potassium Iron Titanium Silicate
Star-leaf sprung from dark rock.
Chakra
Crown · Root
Element
Fire · Earth
Zodiac
Scorpio · Aquarius

I. The Metaphysical Reading
How the stone has been held.
Named for its star-like radiating habit. Astrophyllite is spoken of as a stone of self-knowledge, one that helps a practitioner name the pattern of their own life from a slight remove. It is often carried during periods of biographical reflection and honest reappraisal.
- Chakra
- Crown · Root
- Element
- Fire · Earth
- Zodiac
- Scorpio · Aquarius
- Keynote
- Star-leaf sprung from dark rock.
II. The Scientific Reading
What the lattice actually does.
Astrophyllite is a rare titanosilicate that crystallises in flat radiating sprays of golden bladed crystals, a habit unusual enough to have named the species. It forms in alkaline igneous rocks, most famously the agpaitic nepheline syenites of the Khibiny and Lovozero massifs on the Kola Peninsula. Its brassy sheen comes from ferrous iron and its blades cleave in a single perfect direction, splitting into flexible mica-like sheets.
- Formula
- (K,Na)₃(Fe²⁺,Mn)₇Ti₂Si₈O₂₄(O,OH)₇
- System
- Triclinic
- Hardness
- 3 (Mohs)
- Provenance
- Russia (Kola Peninsula), Norway, Greenland, USA (Colorado), Canada
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- (K,Na)₃(Fe²⁺,Mn)₇Ti₂Si₈O₂₄(O,OH)₇
- Crystal System
- Triclinic
- Mohs Hardness
- 3 (Mohs)
- Density
- 3.30 – 3.40 g/cm³
- Refractive Index
- 1.678 – 1.733
- Provenance
- Russia (Kola Peninsula), Norway, Greenland, USA (Colorado), Canada
- Color Origin
- Golden bronze to copper with strong pleochroism
Related Crystals
Stones that share this lattice
Next in the Atlas
Atlantisite
Green ground broken by lilac light.




