Stone
Mimetite
Mimetite is a arsenate mineral with composition Pb₅(AsO₄)₃Cl, hexagonal symmetry and Mohs hardness about 3.5.
Also known as: mimetit · mimetite
Mineral identity
Mimetite is a arsenate mineral or mineral group with the composition Pb₅(AsO₄)₃Cl. It crystallizes in the hexagonal system and has a Mohs hardness of about 3.5. Its typical colour range is yellow, orange, brown or green; reliable identification depends on structure and physical properties, with laboratory analysis where needed, rather than colour alone.
Formation and occurrence
Its geological setting, associated minerals and host rock must be read together when assessing identity and origin. A locality name by itself is not a guarantee of quality, treatment status or natural origin. Representative occurrences and historically important sources are documented in the corresponding Turkish section.
Gemology, history and use
Mimetite has a documented role as a mineral specimen, gem, ore or cultural material according to its durability and chemistry. Natural, synthetic, treated and look-alike materials must be distinguished; a trade name alone does not establish mineral identity. Collectors consider crystal integrity and documented provenance, while jewellery use also requires attention to cleavage, toughness, heat and chemical sensitivity.
Distinguishing features
The formula Pb₅(AsO₄)₃Cl, hexagonal symmetry, hardness near 3.5, and characteristic occurrence form a combined identification framework. Colour can change with impurities, inclusions, alteration or surface tarnish and is therefore not conclusive by itself. Valuable, ambiguous or treated material should be examined by a qualified gemologist or mineralogist.
Symbolism and traditional context
Modern and historical traditions give Mimetite symbolic meanings comparable to those described in the Turkish entry. These are cultural or esoteric associations, not measured mineral effects or medical treatment claims. Symbolic practice must never override chemical safety or physical durability.
Care and safety
Care must reflect hardness, cleavage, solubility and chemistry. Mimetite should be protected from unsuitable cleaning, impact and uncontrolled dust. The specific warning for this entry is: Kurşun ve arsenik içerir: kapalı saklayın, toz üretmeyin, dokunmayı sınırlayın ve kesinlikle su iksiri yapmayın. Unknown specimens should not be ingested or placed in drinking water, and must be kept away from children and pets. Mineral use does not replace professional medical diagnosis or treatment.
Source approach
Identity, formula and locality were checked against Mindat; gemological context against GIA; and collection context against Smithsonian Mineral Sciences.
Properties
- Mohs hardness
- 3.5
- Primary color
- yellow, orange, brown or green
- Mineral family
- arsenate
- Scientific name
- mimetite