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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:

Silver Sheen Obsidian

Silver Sheen Obsidian is a type of volcanic glass that exhibits a silver or silvery-blue sheen or chatoyancy when light reflects off its surface....

Cavansite

Cavansite is a relatively rare and striking mineral known for its vibrant blue color. The name "cavansite" is derived from its chemical composition, as...

Rainbow Moonstone

Rainbow moonstone is a variety of the mineral feldspar, known for its adularescence—a captivating optical phenomenon that creates a distinctive play of colors across...

Rainbow Obsidian

Rainbow Obsidian is a type of volcanic glass that exhibits a captivating play of colors when exposed to light. It is a variety of...

Mahogany Obsidian

Mahogany Obsidian is a type of volcanic glass that is formed during the cooling and solidification of molten lava. It belongs to the broader...

Pumpkin Obsidian

Pumpkin Obsidian is a type of natural glass that is formed when lava high in silica content cools quickly. It is a variety of...

Blue Lace Agate

Blue Lace Agate is a variety of chalcedony, which is a type of microcrystalline quartz. It is known for its delicate blue and white...

Dendritic Agate

Dendritic Agate is a variety of chalcedony, which is a type of microcrystalline quartz. What sets dendritic agate apart is its distinctive inclusions that...

Gold Sheen Obsidian

Gold Sheen Obsidian is a type of volcanic glass that exhibits a stunning golden or metallic sheen on its surface. It is a variety...

Snowflake Obsidian

Snowflake Obsidian is a type of volcanic glass that is primarily composed of silicon dioxide, with distinctive white or grayish "snowflake" patterns dispersed throughout...

Morrisonite Jasper

Morrisonite Jasper is a beautiful and highly sought-after variety of jasper, a type of chalcedony, which is a microcrystalline form of quartz. This unique...

Serendibite

Serendibite is a rare and precious gemstone known for its stunning deep blue to bluish-black coloration. It is a mineral composed of aluminum, silicon,...