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Crystal Encyclopedia

Neptunite

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Neptunite is a rare mineral that belongs to the silicate mineral group. Its chemical formula is KNa2Li(Fe2+,Mn2+)2Ti2(Si4O12)2O2(OH)4, which highlights its complex composition. Neptunite is known for its distinctive deep black to reddish-brown color, often occurring in elongated prismatic crystals or granular aggregates. It has a vitreous to resinous luster and can be transparent to translucent. […]

The Blue Moon Diamond

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The Blue Moon Diamond is a truly remarkable gemstone that has captivated the world with its exceptional beauty, rarity, and unique characteristics. This exquisite diamond holds great significance in the realm of fine jewelry and gemology, making it a highly sought-after and prized gem. What sets the Blue Moon Diamond apart is its extraordinary blue […]

Brandberg Amethyst

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Brandberg Amethyst is a unique and highly sought-after variety of amethyst, renowned for its exceptional quality and stunning beauty. It derives its name from the Brandberg Mountain in Namibia, Africa, where it is primarily found. This type of amethyst is distinct from others due to its remarkable clarity, deep purple coloration, and occasional formation with […]

Rhodizite

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Rhodizite is a rare and intriguing mineral known for its high beryllium content and unique crystal structure. Its name is derived from the Greek word “rhodon,” meaning rose, which is a reference to its characteristic pink to rose-red coloration. Rhodizite is of interest to mineral enthusiasts, geologists, and scientists due to its exceptional properties and […]

Picture Jasper

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Picture Jasper is a unique and fascinating type of jasper, a form of chalcedony, known for its distinctive and intricate patterns that often resemble landscapes, scenes, or images, hence the name “picture” jasper. This variety of jasper is highly valued for its aesthetic appeal and is often used in jewelry making, lapidary arts, and as […]

Prudent Man Agate

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Prudent Man Agate is a remarkable and highly sought-after variety of agate known for its striking and distinctive appearance. This unique gemstone is famous among collectors and enthusiasts due to its geological significance and remarkable beauty. Brief Overview: Prudent Man Agate is a type of banded chalcedony, which is a variety of quartz. What sets […]

Gahnospinel

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Gahnospinel is a mineral belonging to the spinel group, which is a class of minerals with the general formula AB₂O₄. In gahnospinel, A represents a divalent metal cation, typically zinc (Zn²⁺), and B represents a trivalent metal cation, often aluminum (Al³⁺). The mineral has a cubic crystal structure and is characterized by its distinct colors […]