Zaherite

Zaherite
General
Category	Mineral
Formula (repeating unit)	Al12(OH)26(SO4)5·20H2O
IMA symbol	Zah[1]
Crystal system	Triclinic
Identification
Mohs scale hardness	3.5
Luster	Pearly, earthy
Specific gravity	2.007
References	[2]

Zaherite is a mineral, a complex sulfate of aluminium, formula Al₁₂(OH)₂₆(SO₄)₅·20H₂O. It was discovered in the Salt range, Punjab, Pakistan by M. A. Zaher of the Bangladesh Geological Survey after whom it is named in 1977. This mineral would be extremely soluble in water and unlikely to persist anywhere except in the most arid of environments. It spontaneously, and reversibly dehydrates around room temperature. Its color is white to blue-green.

See also

• List of minerals
• List of minerals named after people

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. "Zaherite". mindat.org. Retrieved 2021-12-17.

• Webmineral data