Entry № 024
Apatite
Calcium Phosphate with F, Cl, or OH
The mineral of teeth, bone, and clear speech.
Chakra
Throat · Third Eye
Element
Air · Water
Zodiac
Gemini · Pisces

I. The Metaphysical Reading
How the stone has been held.
Apatite is regarded as a stone of clear articulation and unhurried motivation. Practitioners place blue apatite at the throat to steady honest speech and green apatite at the solar plexus to steady the will, both varieties associated with the quiet discipline of finishing what has been started.
- Chakra
- Throat · Third Eye
- Element
- Air · Water
- Zodiac
- Gemini · Pisces
- Keynote
- The mineral of teeth, bone, and clear speech.
II. The Scientific Reading
What the lattice actually does.
Apatite is the calcium-phosphate mineral group that gives tooth enamel and bone their strength, making it the most abundant phosphorus mineral in the crust. The three end members (fluor-, chlor-, and hydroxylapatite) form a continuous series distinguished by the anion in the crystal channel. Gem apatite owes its saturated colours to trace rare-earth ions and manganese, with the electric teal Madagascan material coloured by Mn⁵⁺.
- Formula
- Ca₅(PO₄)₃(F,Cl,OH)
- System
- Hexagonal
- Hardness
- 5 (Mohs)
- Provenance
- Brazil, Madagascar, Mexico, Russia (Kola), Canada, Myanmar
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- Ca₅(PO₄)₃(F,Cl,OH)
- Crystal System
- Hexagonal
- Mohs Hardness
- 5 (Mohs)
- Density
- 3.16 – 3.22 g/cm³
- Refractive Index
- 1.632 – 1.667
- Provenance
- Brazil, Madagascar, Mexico, Russia (Kola), Canada, Myanmar
- Color Origin
- Blue, green, yellow, violet, or colourless, from rare-earth and Mn substitution
Related Crystals
Stones that share this lattice
Next in the Atlas
Apple Aura Quartz
Green light bound to a clear point.




