Mcallisterite : Mg2[B6O7(OH)6]2·9H2O
Hexahydrite : MgSO4·6H2O
Niahite : (NH4)(Mn2+,Mg)(PO4)·H2O
Starkeyite : MgSO4·4H2O
Mineral(s)
Acquisition date:
Nov 2004
Photo added to mindat.org
“Pink coatings of niahite, with white powdery starkeyite. This specimen also contains mcallisterite (not in this image), in an unusual secondary mineral assemblige. S413-050 N1757N
About a 0.3 cm field of view.”
Jeff Weissman - 21st December 2007
Photo added to mindat.org
“Powdery coating. S413-052 N1757N
0.5 cm field of view, vertical.
ex. John Cianculli and Franklin Mineral Museum.”
Jeff Weissman - 28th January 2008
Photo added to mindat.org
“An area of mcallisterite on white starkeyite. Ex. John Cianciulli and Franklin Mineral Museum. S413-051 N1757N”
Jeff Weissman - 21st February 2008
Photo added to mindat.org
“Efflorescence of hexahydrite, associated with mcallisterite and starkeyite present elsewhere on the specimen. S413-053 N1757N
0.2 cm field of view
Obtained from John Cianciulli”
Jeff Weissman - 6th October 2009
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