Friedelite

Friedeliet, Friedelit, Friedelita, Фриделит, 紅錳礦


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material


Formula: Mn8Si6O15(OH,Cl)10
Mineral class: silicates
Crystal system: monoclinic
Mohs scale: 4 - 5
Density (g/cm3): 3.04 - 3.06
Refractive index: 1.625 - 1.664
Cleavage: perfect
Colors: pink, red, brown
Luster: vitreous
Transparency: transparent - translucent
Fluorescence: -
Pleochroism: -
Largest crystal: 1 cm?
Deposits: worldwide
Discovery: 1876
1st Description: 1892?
Name: in honor of the French mineralogist Charles Friedel (1832 - 1899)

Friedelite

Weight: 0.82 ct

Origin: Franklin / New Jersey / USA

Photo by kind permission of © www.irocks.com

Friedelite

Weight: 1.03 ct

Origin: Franklin / New Jersey / USA

Photo by kind permission of © www.irocks.com

Friedelite

Size: 0.91 x 0.63 cm
Weight: 1.37 ct
Origin: Franklin / New Jersey / USA

Photo by kind permission of © www.irocks.com

Friedelite Mineral

Size: 6.9 x 5.5 x 4.1 cm

Origin: Sterling Mine / Ogdensburg / Sussex County / New Jersey / USA

Photo by kind permission of © www.civilminerals.com
Friedelite Mineral
Friedelite

Weight: 0.47 ct

Origin: Franklin / New Jersey / USA

Photo by kind permission of © Darlene Cobler

Friedelite Mineral

Size: 7.1 x 6.2 x 2.6 cm

Origin: Sterling Mine / Ogdensburg / Sussex County / New Jersey / USA

Photo by kind permission of © www.irocks.com
Friedelite Mineral


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