# Sacred Geometry Shapes Found in Seashells

## Sacred Geometry Shapes Found in Seashells

Sacred geometry is a belief system that finds symbolic meaning in particular geometric shapes that are found throughout nature, such as the Fibonacci sequence, logarithmic spiral, and golden ratio. It is often associated with the idea that a god is the geometer of creation. Principles of sacred geometry are often used in the construction of temples, churches, and other religious buildings. It is a popular theme in many religious works of art. Regardless of one’s beliefs, the Fibonacci sequence, logarithmic spiral, and golden ratio are found in many aspects of nature, and are important in architecture and aesthetics.

## The Fibonacci Sequence in Nature

Fibonacci is a term used in mathematics to describe a sequence of numbers in which each number is the sum of the two numbers that proceeded it. Fibonacci sequences are found frequently in nature, including the florets of flowers, the scales of pinecones, and in the patterns of sea shells. Logarithmic spirals are spirals that follow a Fibonacci sequence, meaning that each part of the spiral is the size of the two parts proceeding it. This sort of spiral can be seen in the shape of galaxies, tropical storms such as cyclones, and also in sea shells. While in nature there is usually some end to the spiral, in theory such a spiral could continue indefinitely. The golden ratio is closely related to the Fibonacci sequence, as it also deals with proportions, and often objects in nature that display Fibonacci also follow the golden ratio.

### Sacred Geometry in Shells

Nautilus shells are one of the most used examples of a Fibonacci sequence. When cut open, nautilus shells form a logarithmic spiral, composed of chambered sections called camerae. As the creature grows in size, it vacates the smallest chamber and moves into the next. It continues to do this as it outgrows the four camarae it was hatched with. over time, the nautilus grows more chambers, until there’s upwards of thirty chambers. Each new chamber is equal to the size of the two camerae before it, which creates the logarithmic spiral. This proportional growth occurs because the nautilus grows at a constant rate throughout its life until reaching its full size. Nautilus shells can sometimes display the golden ratio, depending on the exact measurements of each shell, as there is always some degree of variation between individual creatures. When nautilus shells do display the golden ratio, they are called golden spirals.

Snail shells also are an example of Fibonacci sequences in nature. The spirals can be seen from outside of the shell, and like nautilus shells, they increase in size in the same geometric progression seen in all logarithmic spirals. Sometimes sea snail shells can display a golden spiral, if the spiral grows exactly proportional to itself. An interesting fact is that these spirals are found on just one side of a snail shell, when viewed from the top. In most species, the spiral is found on the same side of the shell in all individuals, but there are a few species in which the spiral can be on either side of the shell. This is rare, as it makes the mechanics of mating more difficult when the spiral is not on the same side, and species with this variance will likely disappear with time.

Sand dollars are a living example of the golden ratio. If a pentagram were to be drawn over the surface of a sand dollar, each segment of the pentagram would be in golden ratio to each other, meaning that the ratio between each section is equal to the sum of those sections to the larger of the two quantities. The golden ratio rounded is 1.618, so when proportions equal this number or come very close, they are considered to be in golden ratio with each other. This golden ratio is also found in starfish, sea urchins, and dolphins. Organisms do not have to be circular in shape to have golden ratio, as long as their proportions still equal 1.618.

Examples of sacred geometry can be found all over nature. From Fibonacci sequences to the golden ratio, mathematical properties are all around us. It’s thought that the Fibonacci sequence and logarithmic spirals are so commonly found in plants and shells because it’s the most efficient way for these organisms to expend energy as they grow.

Many people like to incorporate these amazing patterns into their decor. Check out the rest of the online store at 55-55 Marine Drive to see how you can use seashell collectables in your home.

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