Svabite

Last updated

Svabite
Svabite, Caryopilite-762212.jpg
General
Category Minerals
Formula Ca5(AsO4)3(F,OH)
IMA symbol Sva [1]
Identification
ColorColorless yellowish white, gray, grayish green, colorless to pale lilac in transmitted light
Crystal habit As stout prismatic hexagonal crystals, often modified by several bipyramids, up to 5 mm; also massive
Cleavage Indistinct on {1010}
Fracture Irregular/uneven
Tenacity Brittle
Mohs scale hardness4.0 – 5.0
Density 3.50 – 3.80 (g/cm3)
Refractive index 1.698 – 1.706 Uniaxial (−)
Other characteristicsSoluble in dilute acids

Svabite is an arsenate mineral. [2] The mineral is rare and is also a member of the apatite group. [3] It is isomorphous with apatite and mimetite. [3]

It got its name in 1891 by Hjalmar Sjögren after Anton von Swab. [4]

Occurrence

Svabite can be found in countries like Sweden or Germany. [3]

The mineral is rare in calc-silicate skarns and arsenate analogue. [5]

References

  1. ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi: 10.1180/mgm.2021.43 . S2CID   235729616.
  2. ↑ "Svabite | mineral". Encyclopedia Britannica. Retrieved 3 September 2021.
  3. 1 2 3 "Svabite". National Gem Lab. 25 March 2017. Retrieved 5 September 2021.
  4. ↑ "Svabite". www.mindat.org. Retrieved 5 September 2021.
  5. ↑ Ptáček, Petr (13 April 2016). Apatites and their Synthetic Analogues: Synthesis, Structure, Properties and Applications. BoD – Books on Demand. p. 36. ISBN   978-953-51-2265-4.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.