Poudretteite

Poudretteite
General
CategoryCyclosilicate
FormulaKNa2B3Si12O30
IMA symbolPou[1]
Strunz classification9.CM.05
Dana classification63.02.01a.08
Crystal systemHexagonal
Crystal classDihexagonal dipyramidal (6/mmm)
H-M symbol: (6/m 2/m 2/m)
Space groupP6/mcc
Unit cell1,221.72 ų
Identification
ColorColorless, Light pink
Crystal habitRoughly equant barrel-shaped prismatic crystals
CleavageNone
FractureConchoidal, splintery
TenacityBrittle
Mohs scale hardness5
LusterVitreous (Glassy)
StreakWhite
DiaphaneityTransparent
Specific gravity2.51
Density2.51
Optical propertiesUniaxial (+)
Refractive index1.511 to 1.532
Birefringence0.021
PleochroismColorless to pink
References[2][3][4][5][6]

Poudretteite is an extremely rare mineral and gemstone that was first discovered as minute crystals in Mont St. Hilaire, Quebec, Canada, during the 1960s.[6] The mineral was named for the Poudrette family, the owners of the quarry where poudretteite was originally found. Poudretteite is very faintly radioactive.[7]

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. ^ "Mineralienatlas – Fossilienatlas".
  3. ^ Barthelmy, Dave. "Poudretteite Mineral Data". webmineral.com.
  4. ^ "Poudretteite: Poudretteite mineral information and data". www.mindat.org.
  5. ^ "Poudretteite gemstone information". www.gemdat.org.
  6. ^ a b "Poudretteite – The Gemology Project". gemologyproject.com.
  7. ^ Multicolour – Poudretteite Archived 2013-04-12 at the Wayback Machine


Stub icon

This article about a specific silicate mineral is a stub. You can help Wikipedia by adding missing information.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.