Yes, but not usually in their pure forms. Boron is naturally occurring, and can be found in some soils, coal, shale, and some rocks. Silicon does not usually occur pure in nature, but can be found as silicon oxide in rocks and sands. Germanium occurs naturally in the earth’s crust. Arsenic can be found in several ores but also in a pure form in nature. Antimony can be found in several different minerals. And, lastly, Tellurium is very rare but can be found in some minerals, as well.
Metalloids include: Boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.
These all occur in nature, and behave somewhat like metals and somewhat like non-metals.
Examples of places these are found are in human hair, and at deep sea vents.
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