Datolite

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Physical & Optical Properties

Mohs Hardness 5,0 – 5,5
Specific Gravity 2,9 – 3,0
Refractive Index 1,621 – 1,675
Crystal System Monoclinic
Luster Vitreous
Cleavage None
Fracture Conchoidal
Color various
Birefringence 0,044
Dispersion 0,016
Pleochroism Nil

Mohs Hardness

Mohs Hardness: 5,0 – 5,5
1 Soft10 Hard

Crystal System

β a b c Monoclinic a ≠ b ≠ c, α = γ = 90°, β ≠ 90°

Value & Market

Price Tier Budget (< $50/ct)

About Datolite

Datolite is a calcium boron silicate mineral that forms colorless to pale green or yellow prismatic crystals in basic igneous rocks and metamorphic veins, and also occurs as botryoidal porcelain-like masses in the copper deposits of Michigan's Upper Peninsula that display vivid pink, red, green, and white patterns. Transparent faceted datolite is a delicate but beautiful collector gem, while the massive Michigan material is carved into distinctive cabochons.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Datolite?
Datolite is a calcium boron silicate mineral that forms colorless to pale green or yellow prismatic crystals in basic igneous rocks and metamorphic veins, and also occurs as botryoidal porcelain-like masses in the copper deposits of Michigan's Upper Peninsula that display vivid pink, red, green, and
What is the hardness of Datolite?
Datolite has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Datolite?
Datolite is primarily Various.
How much does Datolite cost?
Datolite falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Datolite?
Datolite belongs to the Monoclinic crystal system.

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