Mineralpedia Details for Scorodite
Named for the Greek scorodion, meaning “garlic,” in reference to the garlicky smell Scoodite produces when heated. From hundreds of occurrences, usually in small amounts, including Germany, the Czech Republic, Austria, England, Algeria, particularity large crystals from Namibia, Brazil, and Mexico, the USA, Japan, and Australia. Scorodite forms as a secondary mineral from the oxidation of arsenic-rich sulfides.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/scorodite.pdf
- Crystal System
- Crystal Habit
- Earthy, Granular, Fibrous
- Imperfect, Poor, Poor
- Vitreous - Greasy
- yellowish green, pale leek green, liver brown, blue green, black green
- greenish white
- Orthorhombic - Dipyramidal
- View Scorodite
- View Scorodite
Scorodite from Bou Azzer dist., Anti-Atlas, Morocco
Scorodite from Mina Ojuela, Mapimi, Durango, Mexico
Bluish to green glassy crystals to 3mm.
Scorodite from Bull Moose mine, Custer Co., South Dakota, United States
Deep blue Scorodite crystals, less than 1cm.
Scorodite from Hemerdon Consols, Plympton, Tavistock dist., Devon, England
Light blue prismatic crystals to 2mm lining vugs in a seam of Quartz. These crystals color change from a light blue under incandescent lighting to a more vivid greenish blue natural sun light.
SCORODITE from Trincheras, Sonora, Mexico
Exceptional Scorodite cluster in matrix with a rich blue color, although that depends on the light source. Under the halogen lights used to take these photos the color is pretty close to that which you'll see in person under the sun. The crystals are to 1-2mm throughout the large 4cm vug.
Scorodite from Tsumeb mine, Tsumeb, Namibia
A thumbnail size specimen with a large 4mm pseudo-octahedral crystal perched nicely at the center of the sulfide matrix. As is typical of Scorodite, it displays the alexandrite effect in which the color changes from purple to blue depending on the light source.
Scorodite is a relatively common mineral typically occuring in decayed Arsenopyrite in a variety of geological environment. Large, well-formed crystals of Scorodite are uncommon.
Scorodite from Gold Hill mine, Tooele Co., Utah, United States
Bluish spheroidal crystal groups of good Scorodite to 0.3mm throughout gossan matrix.
Scorodite from São Pedro do Sul, Viseu, Portugal
Light glassy blue crystals in vugs.