Scorodite

Formula: Fe³⁺(AsO₄) · 2H₂O
Mineral class: Arsenates, Phosphates, Vanadates
Crystal system: orthorhombic
Mohs scale: 3.5 - 4
Density (g/cm³): 3.1 - 3.3
Refractive Index: 1.738 - 1.816
Cleavage: poor
Colors: colorless, grey, yellow, green, blue, violet, brown
Transparency: transparent - translucent
Luster: vitreous
Fluorescence: -
Pleochroism: -
Largest crystal: 5 cm? Usually crystal crusts
Deposits: worldwide
Discovery: 1818
1st Description: 1818 (Breithaupt)
Name: after the Greek word σκορόδιου (Scorodion / Garlic), because of the garlic odor (arsenic gas!) which occurs when the material is rubbed or heated.

Scorodite Mineral

Image width: 0.4 cm

Origin: Grube Clara / Rankachtal / Oberwolfach / Schwarzwald / Baden-Württemberg / Deutschland

Photo by kind permission of © Stephan Wolfsried

Scorodite Mineral

Size: 0.8 x 0.6 x 0.3 cm

Origin: Tsumeb / Otjikoto Region / Namibia

Photo by kind permission of © www.bandlminerals.com

Scorodite Mineral

Size: 8 x 5 x 3 cm

Origin: Tsumeb / Otjikoto Region / Namibia

Photo by kind permission of © www.irocks.com

Scorodite Mineral

Size: 9 x 8.3 x 5.5 cm

Origin: Baishichong / 40 km S of Hezhou / Guangxi / China

Photo by kind permission of © www.bandlminerals.com

Scorodite Mineral

Size: 1.8 x 1.2 x 0.3 cm

Origin: Tsumeb / Otjikoto Region / Namibia

Photo by kind permission of © www.irocks.com

Scorodite Mineral

Size: appr. 2cm

Origin: Tsumeb / Otjikoto Region / Namibia

Photo by kind permission of © www.mineralman.com

Scorodite Mineral

Size: 1.3 x 1.0 x 0.9 cm

Origin: Hezhou Präf. / Guangxi Prov. / China

Photo by kind permission of © www.irocks.com

Scorodite Mineral tenebrescent

Size: appr. 1.3 x 1 cm

Origin: Tsumeb / Otjikoto Reg. / Namibia

Photo by kind permission of © www.earthstreas.com

Scorodite tenebrescent

Size: 0.22 x 0.22 cm
Weight: 0.06 ct
Origin: Morocco

Photo by kind permission of © Darlene Cobler