Manganum silicatum
Signature
Tefroite or Manganum silicate, Mn2SiO4, is a semi-precious stone with a colour varying between grey to olive grey and red to reddish-brown.
Manganum silicatum
Signature
Tefroite or Manganum silicate, Mn2SiO4, is a semi-precious stone with a colour varying between grey to olive grey and red to reddish-brown.