Inca vision tours

𝐖𝐡𝐚𝐭 𝐢𝐬 𝐭𝐡𝐞 𝐨𝐫𝐚𝐧𝐠𝐞 𝐜𝐨𝐥𝐨𝐫 𝐨𝐧 𝐭𝐡𝐞 𝐈𝐧𝐜𝐚 𝐬𝐭𝐨𝐧𝐞?
The orange patches are lichens, a natural organism formed by a symbiosis between algae and fungi, even a moss.
They are not paint, not mineral stains, and not artificial.

𝐖𝐡𝐲 𝐝𝐨 𝐭𝐡𝐞𝐬𝐞 𝐥𝐢𝐜𝐡𝐞𝐧𝐬 𝐠𝐫𝐨𝐰 𝐨𝐧 𝐈𝐧𝐜𝐚 𝐰𝐚𝐥𝐥𝐬 𝐭𝐡𝐞𝐧?

Lichens grow on them because:
✔ The stones are untouched and old
✔ The surface is porous at a microscopic level
✔ They absorb humidity, sunlight, and minerals of the stone
✔ The environment is clean and natural
Inca stones are perfect for lichen growth.

𝐖𝐡𝐲 𝐚𝐫𝐞 𝐭𝐡𝐞𝐲 𝐨𝐫𝐚𝐧𝐠𝐞?

The orange color comes primarily from natural pigments produced by lichens, especially compounds such as carotenoids and anthraquinones. These pigments protect the organisms from intense ultraviolet (UV) radiation at high altitude.
In addition, the stone itself contains naturally occurring minerals, including iron-bearing and sulfur compounds. Under humid conditions, these minerals can slowly migrate to the stone’s surface, where they interact with lichens, fungi, and mosses. This interaction can enhance or intensify the orange coloration, although it does not create it by itself.
Together, the biological pigments and mineral interactions act like a natural sunscreen, allowing lichens to survive extreme sunlight, moisture, and temperature fluctuations over many centuries.
These pigments act like sunscreen.