Amygdaloidal Agate
Amygdaloidal agate is a variety of agate-like material that forms within volcanic vesicles or cavities. It is characterized …
Amygdaloidal agate is a variety of agate-like material that forms within volcanic vesicles or cavities. It is characterized …
Velvet obsidian is a rare variety of obsidian , with a deep black color and a velvety sheen that shimmers with iridescent gr…
Recumbent fold is a geologic feature in which rock layers are folded nearly horizontally. The axial plane, which is the ima…
Metamorphic rocks can be a treasure trove for some of the most beautiful and valuable gemstones on Earth. Examples of gems c…
Turritella agate is a fossilized gemstone formed from the unique combination of ancient snail shells and mineral deposits. C…
Absolute dating methods are indispensable tools in the fields of archaeology, geology, paleontology, and related disciplines…
The most expensive jade is the Barbara Hutton-Mdivani Necklace Imperial Green Jadeite Necklace. The most expensive jad…
Trapiche sapphire is a rare variety of sapphire known for their unique six-rayed star pattern. Trapiche sapphires ha…
Rocks are naturally occurring solid aggregates of one or more minerals. They are the foundation of our planet, forming the …
Mother of pearl, also known as nacre, is the iridescent inner layer of the shells of certain mollusks, most commonly oysters…