Naturally occurring (it is an element), the metal occurs naturally in its pure, free form (native silver), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite.
naturally occurring.
Potassium is naturally made
No - it's a man-made object. But the stuff it is made from is naturally occurring.
Phosphorus is naturally occurring. It is found in rocks
Thallium is a naturally occurring element in the Earth's crust. It is not a man-made element.
No - it's a man-made object. But the stuff it is made from is naturally occurring.
The opposite of naturally occurring would be artificially created or man-made.
Silver is a naturally occurring element and is found in the Earth's crust. It is not man-made but can be refined and extracted from ores through mining and processing. Silver can also be extracted as a byproduct of mining other metals like copper, lead, and zinc.
No. It's man-made.
Naturally occuring.
Not all the elements occur naturally; some elements are man-made.
No. It is a "Rare Earth"- found only in trace amounts, but naturally occurring.