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The Gemstones



Consumer Information
What color is it?: Colorless, off-yellow, pink
What is the story behind this gemstone?: Is becoming a popular colored faceted gemstones to emulate a diamond....even though they are very far apart in properties.
Can I wear it everyday?: If you can find a faceted danburite you can. It is a long wearing gemstones.
Is it expensive?: No. About the same price as a colorless (white) topaz.
Is it a birthstone?: No.
What do I need to know before going shopping?: Call ahead. Most jewelers will not know about this interesting gemstone. But it can be quite pretty and wear very well

General Information
Source: Danbury, CT, USA was the first source...hence its name. Since then deposits have been found in many world locations.
Chemical: Ca(B2SI2O8)
Crystal System: Orthorhombic
Unusual Properties: None

Gemological Information
RI: 1.630 - 1.636
Birefringence: .006
Optic Character: B+
Specific Gravity: 3.02 + -
Hardness: 7.5
Transparency: TP
Special Identifying Properties and Tests: None
Synthetics: None
Imitations: None


For the gemological information on this gemstone we invite you to join us in the

International School of Gemology.