Magnesite

Magnesiet, Magnesiitti, Magnesit, Magnesita, Magnésite, Magnezit, Magnezyt, Магнезит, מגנזיט, 菱苦土石, 菱鎂礦


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


Formula: MgCO3
Mineral class: carbonates
Crystal system: trigonal
Mohs scale: 3.5 - 4.5
Density (g/cm3): 3.0
Refractive index: 1.508 - 1.717
Cleavage: perfect
Colors: colorless, white, yellow, rose, brown, violet
Transparency: transparent - translucent
Luster: vitreous
Fluorescence: white, blue, green
Pleochroism: visible
Largest crystal: 30 cm?
Deposits: worldwide
Discovery: c.1770?
1st Description: 1808 (Karsten)
Name: re. to the content of magnesium

Magnesite Mineral

Size: 2.4 x 2.1 x 1.7 cm

Origin: Minas Gerais / Brazil

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

Weight: 35.26 ct

Origin: Brumado / Bahia / Brazil

Photo by kind permission of © www.minclassics.com

Magnesite Mineral on Uvite

Size: 5.2 x 2.9 x 2.7 cm

Origin: Serra das Éguas / Brumado / Bahia / Brazil

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

Size: 0.6 x 0.5 x 0.4 cm
Weight: 1.10 ct
Origin: Serra das Éguas / Brumado / Bahia / Brazil

Photo by kind permission of © www.lucianabarbosa.com

Magnesite Mineral

Size of the crystal: 0.15 cm

Origin: Becker Quarry / West Willington / Tolland County / Connecticut / USA

Photo by kind permission of © Peter Cristofono
Magnesite Mineral


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