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Hydrozincite

Named for its chemical components of water (hydro) and zinc. Hydrozincite is a widespread and common mineral that can be found in oxidized zinc deposits, typically at the expense of sphalerite and smithsonite, and can also be found in mine workings and caves as incrustations. Localities for good specimens of Hydrozincite include in Austria, Italy, Spain, the United States, Mexico, Iran, Australia, and Bulgaria. Hydrozincite will fluoresce pale blue to lilac under ultraviolet light.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/hydrozincite.pdf
- Formula
- Zn5(CO3)2(OH)6
- Crystal System
- Monoclinic
- Crystal Habit
- Bladed, Stalactitic, Massive - Fibrous
- Cleavage
- Perfect, None, None
- Luster
- Pearly
- Color
- white, yellowish white, grayish white, pinkish white, bluish white
- Streak
- white
- Class
- Monoclinic - Prismatic
- Fracture
- Brittle
- Hardness
- 2-2.5
- WebMineral
- View Hydrozincite
- Mindat
- View Hydrozincite
Hydrozincite from Mina Ojuela, Mapimi, Durango, Mexico

Hydrozincite from Downeyville Lead mine, Nye Co., Nevada, United States

- Special Info
- EDS Confirmed
Snow white bladed crystals in 2mm clusters.