Properties
| Category | Arsenate minerals ; Apatite group |
|---|---|
| Formula | Pb5(AsO4)3Cl |
| Crystal system | Hexagonal |
| Color | Pale to bright yellow, yellowish brown, yellow-orange, white, may be colorless |
| Crystal habit | Prismatic to acicular crystals; reniform, botryoidal, globular, |
| Cleavage | Imperfect |
| Fracture | Brittle, conchoidal |
| Tenacity | Brittle |
| Mohs scale hardness | 3.5–4 |
| Luster | Resinous, subadamantine |
| Streak | White |
| Diaphaneity | Transparent to translucent |
| Specific gravity | 7.1–7.24 |
From the Wikipedia article
Mimetite is a lead arsenate chloride mineral which forms as a secondary mineral in lead deposits, usually by the oxidation of galena and arsenopyrite. The name derives from the Greek Μιμητής mimetes, meaning "imitator" and refers to mimetite's resemblance to the mineral pyromorphite. This resemblance is not coincidental, as mimetite forms a mineral series with pyromorphite and with vanadinite. Notable occurrences are Mapimi, Durango, Mexico, and Tsumeb, Namibia.
Source
Source record: crystal-compendium/mimetite/minerals.json. Fetched from English Wikipedia by the operator 2 October 2026.
https://en.wikipedia.org/wiki/Mimetite — revision id 1371459535. Text and properties from Wikipedia, licensed CC BY-SA 4.0.