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A selenite moon bowl is a crescent- or moon-shaped bowl carved from selenite, a form of gypsum crystal known for its metaphysical and energetic pro...

What is Citrine? Citrine is a transparent, yellow-to-orange variety of quartz. It gets its warm color from trace amounts of iron in the crystal...

What is Desert Rose? Desert Rose is a unique mineral formation made of gypsum or barite with sand inclusions, forming naturally in desert envir...

What Is an Amethyst Cluster? An amethyst cluster is a natural grouping of amethyst crystals growing together on a common matrix or base. These ...

What is Pyrite? Pyrite is a naturally occurring iron sulfide mineral (FeS₂), commonly known as "Fool's Gold" due to its metallic luster and bra...

What is Pyrite? Pyrite is a naturally occurring iron sulfide mineral (FeS₂), commonly known as "Fool's Gold" due to its metallic luster and bra...

What is a Herkimer Diamond? Despite its name, a Herkimer Diamond is not a true diamond, but rather a very clear, naturally double-terminated quartz...

What Is a Break-Open Geode? A break-open geode is a natural hollow rock formation that contains a cavity lined with crystals or mineral deposits in...

Galena is the natural mineral form of lead sulfide (PbS) and is the most important ore of lead. It's one of the most recognized and widely used met...

What is Vanadinite? Vanadinite is a striking mineral known for its vibrant red to orange-red hexagonal crystals. It is a lead chlorovanadate mi...

Aragonite is a carbonate mineral, one of the two common, naturally occurring crystal forms of calcium carbonate (CaCO₃), the other being calcite. F...

Azurite is a beautiful deep blue copper mineral known for its vibrant color and crystal formations. When azurite crystals grow together naturally i...

A mosasaur tooth is a fascinating and highly collectible fossil from one of the most formidable marine predators of the Late Cretaceous period....

A shark tooth pendant is a necklace or jewelry piece featuring a real or replica shark tooth as its focal point. It may be left in its raw natu...

Crocodile teeth are specialized for grabbing, holding, and sometimes tearing prey. Their design reflects their role as ambush predators in aqua...

Crocodile teeth are specialized for grabbing, holding, and sometimes tearing prey. Their design reflects their role as ambush predators in aqua...

A Jurassic crocodile tooth on matrix typically refers to a fossilized tooth from a prehistoric crocodile (or crocodyliform) that lived during th...

What Is a Clam Fossil? A clam fossil is the preserved shell or impression of an extinct or ancient bivalve mollusk. Clams belong to the c...

A shark tooth on matrix is a fossilized shark tooth that remains embedded in part of the original surrounding sedimentary rock, known as ...

The term "Orthoceras egg" is a bit of a misnomer — Orthoceras did not lay fossilized eggs that we know of, and no fossilized cephalopod e...

Orthoceras (meaning “straight horn”) is an extinct genus of cephalopod that lived in the Earth's oceans during the Ordovician period (~48...

Orthoceras (meaning “straight horn”) is an extinct genus of cephalopod that lived in the Earth's oceans during the Ordovician period (~48...

It sounds like you're referring to Orthoceras and ammonites, which are often confused or lumped together because they are both fossilized...

A small ammonite is a fossilized shell from an extinct group of marine mollusks that lived during the Paleozoic and Mesozoic eras. These ...