rakovanite
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Rakovanite, (NH4)3Na3(V10O28) · 12H2O; formerly given as Na3(H3V10O28).15H2O; later, the ammonium ion was shown to be present and essential, is a member of the pascoite family. It is a transparent, brittle mineral occurring in the monoclinic crystal system. It is orange in color and has an orange-yellow colored streak. Rakovanite is soft with a Mohs hardness of 1 and a calculated density of 2.407g cm−3. It does not fluoresce in long- or short-wave ultraviolet radiation. Rakovanite crystals are up to one mm in maximum dimension and vary in habit from blocky to prismatic on [001], commonly exhib
In the Vinony graph
Vinony's link graph records 3 inbound references to rakovanite, and connects out to Mohs scale of mineral hardness, Colorado and vanadium.
Vinony files it under Minerals in space group 14, Monoclinic minerals and Oxide minerals.
Vinony links it to 5 Wikipedia language editions.
Wikidata facts
- Image
- Rakovanite.jpg
Show 5 more facts
- crystal system
- monoclinic crystal system
- streak color
- amber
- Commons category
- Rakovanite
- IMA Mineral Symbol
- Rkv
- chemical formula
- Na₃{H₃[V₁₀O₂₈]}·15H₂O
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Encyclopedic overview
5 sectionsContents
- Occurrence
- Atomic arrangement
- Chemical composition
- See also
- References
Rakovanite, (NH4)3Na3(V10O28) · 12H2O; formerly given as Na3(H3V10O28).15H2O; later, the ammonium ion was shown to be present and essential, is a member of the pascoite family. It is a transparent, brittle mineral occurring in the monoclinic crystal system. It is orange in color and has an orange-yellow colored streak. Rakovanite is soft with a Mohs hardness of 1 and a calculated density of 2.407g cm−3. It does not fluoresce in long- or short-wave ultraviolet radiation. Rakovanite crystals are up to one mm in maximum dimension and vary in habit from blocky to prismatic on [001], commonly exhibiting steps and striations parallel to [001]. Its name honors John Rakovan, former professor, Department of Geology and Environmental Earth Science, Miami University, State Mineralogist and Senior Museum Curator, New Mexico Bureau of Geology and Mineral Resources.
== Occurrence == Rakovanite was found on specimens from the Sunday mine and the West Sunday mine, Slick Rock district, San Miguel County, Colorado, US.
Excerpted from Wikipedia’s “rakovanite” article, available under the CC BY-SA 4.0 licence.