vladimirite
Sign in to saveVladimirite is a rare calcium arsenate mineral with a formula of Ca5(HAsO4)2(AsO4)2·5H2O. It is named after the Vladimirovskoye deposit in Russia, where it was discovered in the 1950s.
In the Vinony graph
Vinony's link graph records 5 inbound references to vladimirite, and connects out to arsenate mineral, Russia and Germany.
It is catalogued under topics including Arsenate minerals, Calcium minerals and Minerals in space group 14.
Vinony links it to 5 Wikipedia language editions.
Wikidata facts
- Subclass of
- arsenate mineral
- Image
- RM1858-vladimirite-sp2.jpg
Show 9 more facts
- crystal system
- monoclinic crystal system
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.CJ.25
- Nickel-Strunz 9th edition (updated 2009)
- 8.CJ.25
- Commons category
- Vladimirite
- type locality (geology)
- Khovu-Aksy
- streak color
- white
- IMA Mineral Symbol
- Vld
- chemical formula
- Ca₄(AsO₄)₂(AsO₃OH) * 4H₂O
- Strunz 8th edition (series ID, updated)
- VII/C.16
via Wikidata · CC0
~2 min read
Encyclopedic overview
2 sectionsContents
- Occurrence
- References
Vladimirite is a rare calcium arsenate mineral with a formula of Ca5(HAsO4)2(AsO4)2·5H2O. It is named after the Vladimirovskoye deposit in Russia, where it was discovered in the 1950s.
Vladimirite is monoclinic-prismatic, which means crystallographically, it contains three axes of unequal length and the angles between two of the axes are 90 degrees, and one is less than 90 degrees. It belongs to the space group P21/c. The mineral also has an orthorhombic polytype. In terms of its optical properties, vladimirite is anisotropic which means the velocity of light varies depending on direction through the mineral. Relief is a diagnostic characteristic of a mineral in plane polarized light that refers to the various ways different minerals "stand out". Vladimirite's calculated relief is 1.65-1.661, which is moderate. It is colorless in plane polarized light, and it is weakly pleochroic. Pleochroism is the variety of colors under plane polarized light displayed by crystals at various angles.
Excerpted from Wikipedia’s “vladimirite” article, available under the CC BY-SA 4.0 licence.