Danalite

saf-ahyuh r

Danalite is a very rare brown, yellow to pink-red colored mineral named for the American mineralogist James Dwight Dana in 1866. Danalite has a limited number of global sources, including the New England states of Massachusetts, Rhode Island and Delaware.

Danalite Polished
Danalite Classification
Common Name Danalite
Species Danalite
Danalite Optical Properties
Transparency Translucent-Semitranslucent
Refractive Index 1.747-1.771
Optic Character NA
Pleochroism None
Danalite Characteristic Physical Properties
Hardness 5.5-6.0
Specific Gravity 3.280-3.460
Toughness Poor
Luster Vitreous, Greasy
Fracture Uneven
Cleavage Poor, in two directions
Danalite Chemistry & Crystallography
Chemical Name Iron Beryllium Silicate Sulfide
Chemical Formula Fe2+4Be3(SiO4)3S
Crystal System Cubic
Chemistry Classification Silicate

Danalite Colors

  • Yellow Danalite Yellow
  • White Danalite White
  • Pink Danalite Pink
  • Red Danalite Red
  • Brown Danalite Brown
  • Gray Danalite Gray

Countries of Origin

Brazil; Mexico

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Tim Matthews

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Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.