Spotting the year's first violets is a welcome and reliable harbinger of spring. In the weeks that follow, every tour I lead will have a secondary (usually unspoken) purpose--searching for purple. Outwardly, my quest is based by the fact that spring is purple's season in North Florida. Inwardly, however, part of me wonders if Alice Walker might have gotten it right when she warned, in The Color Purple, that, “If you pass by the color purple in a field and don't notice it, God gets real pissed off."
On a recent hike in the Ichetucknee Forest, I stopped by Blue Hole Spring where a plein air painter was performing her magic on a large canvas. She allowed me to watch as she delicately dabbed her brush into small blob of intense cobalt blue paste and then carefully swiped it onto the canvas. Being the season, my eye was drawn to the corner of her palette where she had smeared a small dollop of red pigment. Next to it was a dollop of blue. Carefully and with a sureness that spoke of an act done hundreds of times, she took a blunt, metal knife and sliced off a grape-sized piece of the blue paste and a similar sized portion of the red and swirled them together. She eyed the mix and then added a tiny bit more red, creating the exact hue she wanted. “That’s how purple is made,” she explained. “There is no true color purple. It does not have its own wavelength like true spectral colors, so you won’t find it in the rainbow or in that catchy acronym, ROY G. BIV, which scientists use for remembering the primary colors –red, orange, yellow, green, blue, indigo, violet.” I’m envious that she can create it. No hiking required.
So,
what is it about purple? What is it that prompts an otherwise normal river
guide to embark on an annual pilgrimage and has inspired humans since the misty beginnings of civilization? Spectral or not,
people have been using purple to color their world since the Neolithic period,
when they used manganese and hematite to give purple to their cave
drawings of animals and things they deemed wall-worthy. No spear head or pot
sherd moves me more powerfully or strips away the 16,000 year gap that
separates us more completely than the image of her own hand which some inspired
cave dweller drew on her wall.
But
if any species in this forest is going to claim a long and meaningful
relationship with purple, I’m afraid we humans will have to yield to the
snails. If there’s one tribe of creatures that has thrived gloriously in the
Ichetucknee realm, it is the snails. Between the apple snails (largest freshwater
snails in North America), silt snails (including species found in practically
every square yard of the river bottom and vegetation and the Ichetucknee silt
snail with a total range of about 500 square feet) and manatee snails that
leave their snotty trails on damp, shaded tree trunks throughout the hardwoods,
there are few places in this area we won’t find some kind of snail. So, what’s
their connection to purple?
It
turns out that some of their kin—mostly marine species—contain in their bodies,
substances that yield some of the most beautiful shades of purple ever
discovered in nature. In the 15th century BC, Phonecians learned how
to extract a beautiful and long-lasting purple dye from the mucus of the spiney
dye murex snails. This was the source of a famous dye called Tyrian Purple,
used for a couple of thousand years by Emperors, noblemen and religious
leaders. Creating usable dye required many snails (one researcher found it took
12,000 snails to make 1.4 ounces of dye). Descriptions of the large mounds of
these shells generated by dye collectors (known, at the time as Purple Men),
remind me of our local shell middens.
The
Mayans and Aztecs of Central America and Mexico also discovered beautiful
purples in the bodies of their local marine snails which they used in art and
to dye fabrics. As in Europe and the Middle East, this rich purple quickly
became the color of royalty. Also like that of its Eastern relative, the dye
was worth big money—the kind of money that prompted villagers to hold large
stones to their chest and jump into the water, where the stone would send them
plummeting to the bottom where they would gather snails.
I
hear this and I’m grateful modern cave divers have more to work with than
strong lungs and big rocks. If not for their work, we would know little of the
cobalt blue world of the Floridan Aquifer beneath us. Through the photographic
images they bring up of vast blue chambers, it becomes increasingly clear that
Florida is “born to the blue.” The challenge now is getting our legislators to
value the blue color of springs as much as people of all eras have valued
purple.
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