Home Minerals Page 7

Minerals

A mineral is a naturally occurring chemical compound usually of crystalline form and not produced by life processes. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy. To meet the definition of “mineral” used by most geologists, a substance must meet five requirements:

Bytownite

Bytownite is a mineral that belongs to the plagioclase feldspar group, which is a class of rock-forming minerals commonly found in igneous and metamorphic...

Chlorastrolite (Green Starstone)

Chlorastrolite, also known as the "Green Starstone" or "Michigan Greenstone," is a rare and distinctive variety of the mineral pumpellyite, a silicate mineral. What...

Hypersthene

Hypersthene is a mineral belonging to the pyroxene group, which is a class of inosilicate minerals commonly found in igneous and metamorphic rocks. Its...

Rainbow Lattice Sunstone

Rainbow Lattice Sunstone is a captivating and rare gemstone known for its striking appearance and unique optical properties. This mineral is a variety of...

Peanut Wood Jasper

Peanut Wood Jasper is a unique and visually striking variety of jasper, which is a type of chalcedony, a microcrystalline form of quartz. What...

Tiffany Stone (Bertrandite)

Tiffany Stone is a rare and unusual gemstone known for its vibrant and colorful appearance. It is not actually a mineral in the traditional...

Ocean Jasper

Ocean Jasper is a type of semi-precious gemstone and mineral that is known for its vibrant and intricate orbicular patterns and colors. It is...

Gaspeite

Gaspeite is a relatively rare and vibrant green mineral that belongs to the carbonate mineral group. It is named after the Gaspé Peninsula in...

Hackmanite

Hackmanite is a rare and fascinating mineral that exhibits a unique phenomenon known as tenebrescence. Tenebrescence is the property of certain minerals to temporarily...

Tsavorite Garnet

Tsavorite garnet is a rare and highly valued gemstone known for its vibrant green color. It belongs to the garnet family of minerals and...

Black Pearls

Black pearls, also known as Tahitian pearls or black Tahitian pearls, are a unique and highly sought-after variety of pearls known for their exotic...

Azurmalachite

Azurmalachite is a semi-precious gemstone that is often used in jewelry and ornamental objects. It is known for its striking blue and green coloration,...