Fraipontite

Source: Wikipedia, the free encyclopedia.
Fraipontite
2V angle
Measured: 15° to 20°
References[2][3][4]

Fraipontite is a zinc aluminium silicate mineral with a formula of (Zn,Al)3(Si,Al)2O5(OH)4.[2][3]

It is a member of the

oxidation product of zinc deposits. It occurs with smithsonite, gebhardite, willemite, cerussite and sauconite.[2]

It was first described in 1927 for an occurrence in Vieille Montagne,

Laurium, Greece; Swaledale, North Yorkshire, England; the Silver Bill mine, Cochise County, Arizona, the Blanchard Mine, Socorro County, New Mexico and the Mohawk mine, San Bernardino County, California in the US; and from the Ojuela mine, Mapimi, Durango, Mexico.[2]

A synonym of the fraipontite is the zinalsite, which was reported in 1956 for an occurrence in Kazakhstan.[5][6]

References

  1. S2CID 235729616
    .
  2. ^ a b c d Handbook of Mineralogy
  3. ^ a b c Mindat.org
  4. ^ a b Webmineral data for fraipontite
  5. ^ Zinalsite on Webmineral
  6. ^ Zinalsite on Mindat

External links

Media related to Fraipontite at Wikimedia Commons


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