Hanksite

Hanksite is from Trona in California, the only place where this rare crystal has been found in any quantity. It can only be mined once a year during the annual Gem-O-Rama festival in Trona, as for the rest of the year Searles Lake, the salt lake where it is found, is used for mining borax and halite by an industrial company. This mineral must not be kept in humid conditions, or at least if it is then it must be placed in an airtight container. It should also be kept oiled with mineral oil if it starts to dry out to preserve it. It was named in 1885 after California's first State geologist, Henry Garber Hanks.