Properties
Mineral Group: Silicate Tekto
Chemistry: CAB2 (SiO4) 2
Colour: Colorless white, yellow, brown, pink
Crystal system: orthorhombic
Mohs hardness: 7-7.5
Refraction: 1.627 to 1.639
Birefringence: 0.006
Density: 2.97 to 3.03
Information
Can be confused with
Topaz (most common mistake), silicas, Phenakit with several white / colorless stones. Danburit can of course have other colors and consequently possible confusion between items.
Treatments
Irradiation and heat treatment (to whiten matrialet) is conceivable.
Instruments for identification
Microscope / Loupe look for so-called "fingerprints" as well as tube-like inclusions (may even give cat's eye effect).
Specific gravity and refractive index with hydrostatic weighing and refractometer. The two tests will help to separate from Topaz.
Polariscope can separate out the crystal form, but as Topaz is also orthorhombic it is the mineral that Danburit is most easily confused with.
Deposits
Burma, Russia, Japan, Madagascar and the United States.
Miscellaneous
The name comes from where it was first discovered - in Danbury, Connecticut, USA. This is a rare gem that has only recently been appreciated as a gemstone. Has been used as diamond simulant.
Read / learn more about Danburite
Danburite in healing (Source: ChatGPT)
Danburit is a highly valued crystal in healing and spiritual work. It is known for its gentle but deep energies that support the heart and mind in a loving and balancing way.
Read/Learn more about Danburite – Healing Properties
