Thomsonite Subgroup

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Physical & Optical Properties

Mohs Hardness 5,0 – 5,5
Specific Gravity 2,25 – 2,4
Refractive Index 1,51 – 1,55
Crystal System Orthorhombic
Luster Silky
Cleavage Perfect
Fracture Uneven
Color various
Birefringence 0,015
Pleochroism Nil

Mohs Hardness

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

Crystal System

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

Value & Market

Price Tier Budget (< $50/ct)

About Thomsonite Subgroup

El grupo de la thomsonita agrupa varias zeolitas estrechamente relacionadas que forman cristales tabulares o prismáticos blancos, rosas, rojos o verdes. Los nódulos de thomsonita de la costa del lago Superior (Minnesota, EE. UU.) son muy apreciados por los coleccionistas locales: presentan atractivos patrones concéntricos de colores y se pulen en cabujones para joyería. Se forman en cavidades de basalto. Llevan el nombre del químico escocés Thomas Thomson.

Jewelry Use

Durability 4/10

Science FYI Family

Frequently Asked Questions

What is Thomsonite Subgroup?
El grupo de la thomsonita agrupa varias zeolitas estrechamente relacionadas que forman cristales tabulares o prismáticos blancos, rosas, rojos o verdes. Los nódulos de thomsonita de la costa del lago Superior (Minnesota, EE. UU.) son muy apreciados por los coleccionistas locales: presentan atractivo
What is the hardness of Thomsonite Subgroup?
Thomsonite Subgroup has a Mohs hardness of 5.0 to 5.5, making it moderate for use in jewelry.
What color is Thomsonite Subgroup?
Thomsonite Subgroup is primarily Various.
How much does Thomsonite Subgroup cost?
Thomsonite Subgroup falls into the Budget (< $50/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Thomsonite Subgroup?
Thomsonite Subgroup belongs to the Orthorhombic crystal system.

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