Odontolite

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Physical & Optical Properties

Mohs Hardness 5,0
Specific Gravity 3,0
Refractive Index 1,57 – 1,63
Color various

Mohs Hardness

Mohs Hardness: 5,0
1 Soft10 Hard

Value & Market

Price Tier Budget (< $50/ct)

About Odontolite

Odontolite, also known as bone turquoise, is a fossilized dinosaur or mammal bone or tooth stained a vivid blue to blue-green color by iron phosphate (vivianite) during fossilization, creating a material that closely resembles turquoise in color and appearance. The finest odontolite historically came from the Jurassic deposits of southern France (Tarn, Lot) and was used in medieval Europe as a turquoise substitute set in jewelry and decorative objects before gemological analysis revealed its true nature. It is now primarily of historical and paleontological interest.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Odontolite?
Odontolite, also known as bone turquoise, is a fossilized dinosaur or mammal bone or tooth stained a vivid blue to blue-green color by iron phosphate (vivianite) during fossilization, creating a material that closely resembles turquoise in color and appearance. The finest odontolite historically cam
What is the hardness of Odontolite?
Odontolite has a Mohs hardness of 5.0, making it moderate for use in jewelry.
What color is Odontolite?
Odontolite is primarily Various.
How much does Odontolite cost?
Odontolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
How do you care for Odontolite?
Odontolite is moderately durable and best suited for earrings, pendants, and brooches. Avoid ultrasonic cleaners and harsh chemicals.

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