Frozen pond on waters high in MgSO4 below 2 Deg C. Dehydrates to amorphous sodium sulfate or kieserite. Decomposes above 2 Deg C to epsomite and water.
Approved IMA 2007 (Dana # Added)
Venables Valley, 20 km SSW of Ashcroft, British Columbia, Canada Link to MinDat.org Location Data.
The name, meridianiite, was chosen to reflect the locality on Mars where the MER rover Opportunity observed crystal molds in sedimentary rock that are thought to be caused by minera ls that have since dehydrated or disso