| Mineral | HYDROZINCITE |
| Chemistry | Zn 5 (CO 3 ) 2 (OH) 6 |
| Class | Carbonates |
| Uses | minor ore of zinc and as a mineral specimen |
| Color | white to greystained pale pink or pale Yellow or brown . |
| Luster | PearlyDull |
| Transparency | crystals are transparent to translucent. |
| CrystalSystem | Monoclinic |
| CrystalHabits | include massive forms that can be layered, stalactitic, concretionary, fibrous, and encrusting.Crystal are rare, but when found are usually thin, bladed and tapering to a point orin radiating tufts of acicular crystals. |
| Cleavage | Perfect Perfect on {100}. |
| Fracture | perfect in one direction. |
| Hardness | 2 - 2½ |
| SpecificGravity | 3.97 g/ccm |
| Streak | White |
| AssociatedMinerals | It is a secondary mineral of the oxidized zones of zinc mineral depositsparticularly those with sphalerite. |
| Characteristics | fluorescent (blue) in UV light and effervesceses easily in cold dilute hydrochloric acid. |
| Occurences | include Iran; England; Austria; Mexico; southwestern USA, and Australia. |
| Indicators | fluorescense (blue), crystal habits, single plane of cleavage, localities, and reaction to acid. |
| DensityNote | above average for non-metallic minerals |
| IMAStatus | Approved |
| Discovered | 1853 |
| CellParameters | a = 13.58b = 6.28c = 5.41 β=95.51° |
| Ratio | a:b:c = 2.162 : 1 : 0.861 |
| OpticalType | Biaxial (-) |
| RI | n α =1.630 n β =1.642 n γ =1.750 |
| Birefringence | δ=0.120 |
| SurfaceRelief | Moderate |
| TypeLocality | Bad Bleiberg Bleiberg district Gailtaler Alpen & Karnische Alpen Mts Carinthia Austria |
| Strunz | 5/C.01-100 5 : NitratesCarbonates & Borates C : Waterfree carbonates with unfamiliar anions 01 : Azurite - Rosasite group and related compounds |
