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Star Sapphire

Gemstones

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The Virgin Rainbow Opal

The Virgin Rainbow Opal is an extraordinary and highly valuable type of opal characterized by its vibrant play-of-color and exceptional brightness. This rare gemstone...

Lava Stone

Lava stone is a type of igneous rock formed from the rapid cooling of lava that is rich in magnesium and iron. This cooling...

Fossil Coral

Fossil coral is essentially the preserved remains or traces of corals that existed in prehistoric times. These fossils are formed when the original skeletal...

Hyalite Opal

Hyalite opal is a unique variety of opal that is colorless and transparent. It is a type of mineral silica that's chemically similar to...

Broadflash Opal

Broadflash Opal is a captivating variety of precious opal known for its distinctive play-of-color that flashes across a wide area of the gemstone. This...

Yowah Nut Opal

Yowah Nut Opal is a type of precious opal found exclusively in the small town of Yowah, located in Queensland, Australia. It's named after...

Cherry Opal

Cherry Opal is a stunning gemstone known for its captivating colors and mesmerizing patterns. It belongs to the opal family, renowned for its play-of-color,...

Fire Quartz

Fire quartz is a captivating variety of quartz distinguished by its fiery appearance, often due to inclusions of hematite or goethite. These inclusions create...

Hydrophane Opal

Hydrophane opal is a fascinating variety of opal known for its unique ability to absorb water, which can dramatically alter its appearance. Unlike most...

Velvet Obsidian

Velvet Obsidian is a natural volcanic glass formed from the rapid cooling of viscous lava. What sets it apart is its lustrous sheen and...

Sard

Sard is a semi-precious gemstone known for its deep, rich red color, which ranges from reddish-brown to nearly black. It's a variety of chalcedony,...

Chocolate Opal

Chocolate opal is a variety of the common opal, distinguished by its rich, dark brown color that often resembles the hue of chocolate. Like...

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...

Why Is My Rock Magnetic? 8 Common Magnetic Rocks and Minerals

When you bring a magnet close to a rock and notice that it is strongly attracted, the result can be surprising. If the rock...