Mimetite

saf-ahyuh r

Mimetite is a lead-arsenate mineral belonging to the apatite group. It forms a series with vanadinite and pyromorphite. For this reason, the mineral is named for the Greek word for imitator due to its resemblance to pyromorphite.

Mimetite Classification
Common Name Mimetite
Species Mimetite
Mimetite Optical Properties
Transparency Translucent-Transparent
Dispersion Strength: None
Refractive Index Over The Limit 2.128-2.147
Birefringence 0.019
Optic Character Uniaxial
Optic Sign Negative
Polariscope Reaction Aggregate (AGG), Doubly Refractive (DR)
Fluorescence SWUV: Inert to orange
LWUV: Inert to yellowish white
Mimetite Characteristic Physical Properties
Hardness 3.5-4
Streak White
Specific Gravity 7.240
Toughness Poor
Luster SubAdamantine, Resinous
Fracture Uneven, subconchoidal
Cleavage Poor
Mimetite Chemistry & Crystallography
Chemical Name lead chloroarsenate
Chemical Formula Pb5(AsO4)3Cl
Crystal System Hexagonal
Chemistry Classification Phosphate

Mimetite Colors

  • Yellow Mimetite Yellow
  • Orange Mimetite Orange
  • White Mimetite White
  • Colorless Mimetite Colorless
  • Brown Mimetite Brown

Countries of Origin

Czechia; Malaysia; Kazakhstan; Thailand; Portugal; Greece; Austria; Sweden; Morocco; China; Ireland; Russian Federation (the); Poland; Algeria; Slovakia; Bulgaria; Chile; France; United Kingdom of Great Britain and Northern Ireland (the); Argentina; Iran (Islamic Republic of); Romania; United States of America (the); Hungary; Japan; Uzbekistan; Zambia; Switzerland; Bolivia (Plurinational State of); Spain; New Zealand; Canada; Belgium; Norway; Botswana; Namibia; Finland; Italy; Mexico; South Africa; Zimbabwe; Australia; Peru; Germany; Indonesia

Care

Mimetite is fairly soft. Wash hands after handling.

Sisk Gemology Reference

Showcasing 200 gemstones in over 1,000 pages and accompanied by more than 2,000 photos, The Sisk Gemology Reference is a must-have in every collector’s library. Each comprehensive, three-volume set features state-of-the-art photography, detailed illustrations, and scientifically precise descriptions to create an entrancing experience for gemstone amateurs and afficionados alike.

Shop Now

 
Tim Matthews

Author

Tim Matthews

Tim Matthews is President and Chief Executive Officer of Jewelry Television® (JTV), as well as a member of the company's Board of Directors. He oversees and leads all aspects of the company's powerful omni-digital retail platform that uniquely specializes in fine jewelry and gemstones. His passion for business and gemstones has led him to become a recognized expert in the field of gemology. He is a life member of the Gemmological Association of Great Britain (Gem-A) and has earned Gem-A's highest degrees, the Gemmology (FGA) and Diamond (DGA) diplomas. He is also a Graduate Gemologist (GG) of the Gemological Institute of America (GIA) and has also completed GIA's Graduate Diplomas in Diamonds, Colored Stones and Pearls. Under his leadership, JTV has become the leader in the sourcing and selling of color gemstones and jewelry.

This page was created on June 27, 2014.

This page was last edited on October 24, 2019.