Entry № 081
Brown Dravite Tourmaline
Sodium Magnesium Aluminium Borosilicate
The grounded end of the tourmaline family.
Chakra
Root · Solar Plexus
Element
Earth
Zodiac
Taurus · Capricorn

I. The Metaphysical Reading
How the stone has been held.
Brown dravite is worked with as a stone of practical service and unglamorous care. Practitioners carry it during volunteer work, elder care and any long project where the reward is quiet and the work is repetitive.
- Chakra
- Root · Solar Plexus
- Element
- Earth
- Zodiac
- Taurus · Capricorn
- Keynote
- The grounded end of the tourmaline family.
II. The Scientific Reading
What the lattice actually does.
Dravite is the magnesium end-member of the tourmaline group, first described from the Drave River valley of Carinthia in 1883. Its brown colour comes from a combination of iron and titanium substituting for magnesium in the octahedral sites of the trigonal borosilicate structure. Major sources include the Yinnietharra field in Western Australia and the Merelani Hills of Tanzania.
- Formula
- NaMg₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
- System
- Trigonal
- Hardness
- 7 – 7.5 (Mohs)
- Provenance
- Australia, Slovenia, Tanzania, Brazil, Kenya
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- NaMg₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
- Crystal System
- Trigonal
- Mohs Hardness
- 7 – 7.5 (Mohs)
- Density
- 3.03 – 3.15 g/cm³
- Refractive Index
- 1.610 – 1.638
- Provenance
- Australia, Slovenia, Tanzania, Brazil, Kenya
- Color Origin
- Chocolate to warm root-brown transparent prismatic crystals
Related Crystals
Stones that share this lattice
Next in the Atlas
Bumblebee Jasper
Yellow, black and warning.




