Legrandite

Legrandiet, Legrandit, Legrandita, Леграндит, 基性砷锌矿


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


Formula: Zn2(AsO4)(OH)·H2O
Mineral class: arsenates
Crystal system: monoclinic
Mohs scale: 4.5
Density (g/cm3): 3.98 - 4.01
Refractive index: 1.675 - 1.740
Cleavage: fair - poor
Colors: colorless, yellow
Transpareny: transparent - translucent
Luster: vitreous
Fluorescence: -
Pleochroism: X, Y: colorless - yellow, Z: yellow
Largest crystal: 28 cm?
Deposits: worldwide
Discovery: 1932
1st Description: 1963?
Name: in honor of the Belgium mining engineer Legrande (Flor de Peña Mine / Nuevo León / Mexico)

Legrandite Mineral

Size: 1.7 x 1.6 x 1.2 cm

Origin: Ojuela Mine / Mapimi / Durango / Mexico

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

Legrandite Mineral

Size: 3.8 x 3.5 x 2.2 cm

Origin: Ojuela Mine / Mapimi / Durango / Mexico

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

Legrandite

Weight: 0.07 ct

Origin: Ojuela Mine / Mapimi / Durango / Mexico

Photo by kind permission of © www.rocklogic.biz

Legrandite

Weight: 0.22 ct

Origin: Ojuela Mine / Mapimi / Durango / Mexico

Photo by kind permission of © Darlene Cobler

Legrandite

Weight: 0.19 ct

Origin: Ojuela Mine / Mapimi / Durango / Mexico

Photo by kind permission of © Darlene Cobler


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