Svabite is a 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]

Svabite
General
CategoryMineral
Formula
(repeating unit)
Ca5(AsO4)3(F,OH)
IMA symbolSva[1]
Identification
ColorColorless yellowish white, gray, grayish green, colorless to pale lilac in transmitted light
Crystal habitAs stout prismatic hexagonal crystals, often modified by several bipyramids, up to 5 mm; also massive
CleavageIndistinct on {1010}
FractureIrregular/uneven
TenacityBrittle
Mohs scale hardness4.0 – 5.0
Density3.50 – 3.80 (g/cm3)
Refractive index1.698 – 1.706 Uniaxial (−)
Other characteristicsSoluble in dilute acids

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

Occurrence

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

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

References

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  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. ^ a b c "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.