Moss Agate Crystal

Moss Agate Crystal

Moss agate is a translucent chalcedony (microcrystalline quartz, SiO2) with green mineral inclusions that resemble tiny ferns, moss, or trees trapped inside the stone. Despite its name, moss agate is not technically an agate — it lacks the concentric banding that defines true agate. Instead, its appeal lies in the dendritic (tree-like) inclusions of green chlorite, hornblende, or iron/manganese oxides suspended in a translucent white-to-clear host. Mohs hardness is 6.5-7.

Each piece is like a miniature landscape frozen in stone. Major sources include India and the western United States. Indian moss agate tends to have the most vivid green inclusions against a translucent white body. When backlit, moss agate becomes especially dramatic — the green inclusions appear to float in three-dimensional space.

This collection features spheres, palm stones, tumbled stones, freeforms, and raw specimens. Moss agate pairs well with green aventurine, jade, and clear quartz. Free shipping on all U.S. orders over $150.

Frequently Asked Questions

What is moss agate?

Moss agate is a variety of chalcedony (microcrystalline quartz) with green dendritic inclusions of chlorite, hornblende, or manganese oxide. Despite its name, it is not a true agate — it lacks concentric banding. The "moss" refers to the plant-like appearance of the green inclusions trapped within the translucent stone.

Is moss agate the same as tree agate?

They are closely related. Both are chalcedony with green dendritic inclusions. The distinction is that moss agate is typically more translucent (you can see into the stone), while tree agate is opaque white with green markings. In practice, the terms overlap significantly in the market.

Where does moss agate come from?

India is the largest commercial source, producing moss agate with vivid green inclusions in translucent white chalcedony. The western United States (Montana, Oregon) also produces notable specimens. Brazilian and Indonesian moss agate appears in the market as well.

How do I display moss agate?

Moss agate looks best when backlit — place spheres or polished pieces near a window or on a light stand to bring out the three-dimensional depth of the green inclusions. Slabs and freeforms display well on shelves where natural light can pass through the translucent body. Group with other green minerals for a botanical-inspired display.

How do I care for moss agate?

Moss agate is durable (Mohs 6.5-7) and requires minimal care. Safe to rinse in water. Wipe with a soft cloth. It is resistant to fading in sunlight, unlike some quartz varieties. Store normally — it is one of the more robust stones in any collection.