Where it forms, where it's found
- Geological setting
Pyritic lignite deposit.
- Type locality
- Einigkeit Mine
- Bauersberg
- Bischofsheim in der Rhön
- Rhön-Grabfeld District
- Lower Franconia
- Bavaria
- Germany
50.4203°, 10.0364°
10recorded occurrences
Physical
- Transparency
- Translucent
- Colour
- White
- Density
- 1.81 g/cm³
Optical
- Optical type
- Biaxial (-) · 2V measured = 48° · 2V calc = 46°
- Refractive index
- 1.435 – 1.459
- Principal indices
- nα 1.435 · nβ 1.455 · nγ 1.459
- Dispersion
- dispersion not observed
Δ = 0Δmax
PPLpleochroism per grain
XPLindependent extinctions · rotate the stage
PPLpleochroism only · colour blends on rotation
XPLinterference colour · extinct every 90°
Retardation240 nm
Order1st order
XPL colour
Crystallography
- Morphology
Minute acicular, in part twinned.
- Twinning
noted
- Type-locality form
Tiny acicular white crystals
- Comment
Point Group: n.d.; Space Group: n.d. Z = n.d.
Synonyms
- Wattevilleiet
- Wattevillite
In other languages
- German
- Wattevilleit
- Italian
- wattevilleite · Wattevillite
- Chinese
- 灰芒硝
Classification
Strunz
10th ed.7.CC.85
- 7SulfatesClass
- 7.CSulfates (selenates, etc.) without additional anions, with H2ODivision
- 7.CCWith medium-sized and large cationsGroup
- 7.CC.85WattevilleiteSpecies
Dana
8th ed.29.03.04.01
- 29Hydrated Acid and Normal SulfatesClass
- 29.03A2B(XO4)2·xH2OType
- 29.03.04— unnamed intermediate level —Group
- 29.03.04.01WattevilleiteSpecies
Literature, links & citation
Citations
- 1879Singer S (1879) Wattevillit. in Beiträge zur Kenntniss der am Bauersberge bei Bischofsheim vor der Rhön vorkommenden Sulfate, Becker's Universitäts-Buchdruckerei (Würzburg) 18-20
- 1951Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
- 1985Sabelli C, Trosti-Ferroni R. (1985) A structural classification of sulfate minerals. Periodico di Mineralogia: 54: 1-46.
- 2005(2005) Wattevilleite. Handbook of Mineralogy. Mineralogical Society of America
- 2007Leverett, P., Williams, P.A. (2007) Unusual post-mining sulfates from the Peelwood and Lloyd mines, New South Wales, and a comment on wattevilleite. Australian Journal of Mineralogy, 13(1), 41-46.
Cite this entry
@misc{mineral2026,
author = {Mineral Index editorial board},
title = {Wattevilleite — Mineral Index},
year = {2026},
url = {https://mineralindex.org/minerals/wattevilleite-4249},
note = {Accessed 2026-05-11}
}