Datolite

Hemimorphite

Aquamarine

Benitoite

Pezzottaite

Thundereggs

Thundereggs are unique geological formations that resemble ordinary rocks on the outside but contain a surprise hidden within. They are often referred to as...

Sonora Sunrise (Sonora Sunset)

Sonora Sunrise, also known as Sonora Sunset, is a visually striking and unique gemstone that is prized for its vibrant and contrasting colors. It...

Melanite

Melanite is a term used to describe a specific type of mineral, which belongs to the garnet group. Garnets are a diverse group of...

Andesine

Andesine is a silicate mineral, a member of the plagioclase feldspar group. Plagioclase feldspars are a series of minerals that form a continuous series...

Kornerupine

Kornerupine is a mineral that belongs to the cyclosilicate group. It is composed of aluminum, boron, and magnesium, with the chemical formula (Mg,Fe)3Al6(Si,Al,B)5O21(OH). The...

Cacholong

Cacholong is a type of gemstone that is known for its milky white appearance and is often used in jewelry and ornamental items. The...

Dravite (Brown Tourmaline)

Dravite is a mineral that belongs to the tourmaline group, which is a group of complex borosilicate minerals. Tourmalines are well-known for their diverse...

Astrophyllite

Astrophyllite is a rare and unique mineral that belongs to the group of complex silicate minerals. Its name is derived from the Greek words...

Abalone Stone

Abalone is not typically considered a gemstone; rather, it is a marine mollusk known for its iridescent and colorful shell. The term "abalone" refers...

Atlantisite

Atlantisite is a unique and captivating gemstone that is a combination of two minerals: serpentine and stichtite. The name "Atlantisite" is derived from the...

Poudretteite

Poudretteite is a rare and valuable gemstone that belongs to the spodumene mineral group. It is named after the Poudrette family, owners and operators...

Stichtite

Stichtite is a mineral that is known for its striking violet to pinkish-purple color. It is a relatively rare mineral and is often found...

15 Naturally Striped and Banded Rocks

Some rocks in nature display remarkable patterns of stripes, wavy bands, and contrasting layers, almost as if they had been painted by an artist....

Rocks That Float on Water: Types, Formation, and Examples

When you drop a rock into water, you usually expect it to sink. Most rocks are denser than water, so they quickly settle to...