- Erebus Crystal
. [ [http://www.exploratorium.edu/origins/antarctica/fieldnotes/12_31senses.html Origins: Antarctica: Field Notes: Five Senses on Erebus ] ]
Though the formation and growth of these crystals is not well understood, [ [http://antarcticsun.usap.gov/science/contentHandler.cfm?id=1240 The Antarctic Sun: Mount Erebus Throws Fit (Page 2) ] ] it is evident that the crystals grow in the magma beneath Mount Erebus and are ejected out of the mountain encased in glassy
volcanic bombs . This glass structure quickly weathers away leaving the mountainside covered in crystals. [ [http://www.exploratorium.edu/origins/antarctica/fieldnotes/12_31senses.html Origins: Antarctica: Field Notes: Five Senses on Erebus ] ]It is reported that these crystals are highly coveted possessions, prized by almost everyone at
McMurdo Station . In fact they are the preferred form of currency for goods and services. [ [http://www.exploratorium.edu/origins/antarctica/fieldnotes/12_31senses.html Origins: Antarctica: Field Notes: Five Senses on Erebus ] ]References
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