Moss Agate - Crystal River Gems

Moss Agate

As the Northern hemisphere shakes off its winter chill and local flora blooms, we can’t help but turn our attention to moss agate. This earthy stone is a uniquely stunning variety of chalcedony, evoking visions of flourishing plant life and embodying the untamed natural world. What better crystal to wear during the months when summertime is on the horizon? What stone inspires us more to commune with forests?

 

 

First, let’s touch upon moss agate’s name. Technically, moss agate is not a true agate because it doesn’t have concentric banding. Instead it is a chalcedony, which is a microcrystalline quartz composed of silicon dioxide. Its formation process occurs in the Earth’s crust, where silica-rich solutions percolate through porous rock. These solutions gradually deposit tiny layers of silica that build up over time and form the crystal. Various mineral inclusions are also deposited with the silica, becoming trapped within the chalcedony to offer us the amazing and colorful specimens we love.

 

 

The next thing to understand about moss agate is that it does not literally contain moss or any plant matter at all. Shocking, we know! The patterns and textures inside the stone look so similar to moss that it’s almost unbelievable to think there isn’t a single organic sprig involved. Rather, inclusions like iron, manganese, chlorite, and hornblende cause the mossy effect inside the chalcedony. Sometimes the chalcedony is even translucent enough to create a special visual depth to the crystal, giving us the sense that we are looking down into a moss- or algae-filled pond. When the chalcedony is an opaque white color and the green inclusions thread like the branches of a tree, we call the stone “tree agate.” Both moss agate and tree agate form via the same geological process; they simply contain different inclusions and expressions of chalcedony. They are found all over the world in locations like India, the U.S., Russia, Germany, Romania, the Czech Republic, Australia, and many more.

Historically, moss agate has been used for thousands of years in a variety of cultures. Ancient civilizations made amulets and talismans out of the crystal to ward off negativity. In medieval Europe, moss agate was believed to promote agricultural prosperity, and people would place the stone in fields and gardens for the health and abundance of crops. Indigenous American cultures have respected moss agate for many reasons, using it in various ways depending on the particular nation. For example, the Diné people (known in English as the Navajo) have described moss agate as part of their creation story. It seems that no matter which culture on the Earth is using it, moss agate has held a special fascination for human beings as a whole. At the very least it reminds us to take a walk outside, to look up at the trees, and to reach out and feel the moss.

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