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Crystal Encyclopedia

Kornerupine

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Kornerupine is a mineral that belongs to the cyclosilicate group. It is composed of aluminum, boron, and magnesium, with the chemical formula (Mg,Fe)3Al6(Si,Al,B)5O21(OH). The mineral typically occurs in shades of green, but it can also be found in brown, yellow, and blue varieties. Kornerupine is known for its pleochroism, meaning it can display different colors […]

Ajoite

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Ajoite is a rare mineral that is known for its stunning blue-green color. It belongs to the silicate mineral group and is specifically classified as a phyllosilicate. The chemical formula of ajoite is generally given as (K,Na)Cu7AlSi9O24(OH)6·3H2O, indicating its complex composition involving potassium, sodium, copper, aluminum, silicon, oxygen, and water molecules. Discovery and Historical Significance: […]

Andradite

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Andradite is a mineral that belongs to the garnet group, which is a diverse family of silicate minerals. Garnets are well-known for their beautiful and varied colors, making them popular gemstones, but they are also found in various geological environments as common rock-forming minerals. Andradite, specifically, is one of the garnet species and has its […]

Dendritic Opal

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Dendritic opal is a fascinating and visually striking form of opal that is known for its unique and intricate dendritic or tree-like patterns within its translucent or opaque matrix. Definition and Overview: Dendritic opal, sometimes simply referred to as dendritic or moss opal, is a type of common opal, which means it lacks the fiery […]

Brazilianite

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Brazilianite is a rare and highly valued gemstone named after its country of origin, Brazil. It is a phosphate mineral that belongs to the apatite group. Brazilianite is known for its vibrant green to yellowish-green color and its exceptional clarity. It is a popular choice among collectors and gem enthusiasts due to its rarity and […]

Macedonian Green Opal

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Macedonian Green Opal is a unique variety of opal characterized by its vibrant green coloration and translucent to opaque appearance. It belongs to the opal gemstone family, renowned for its mesmerizing play-of-color caused by the diffraction of light within its structure. This particular variety, originating from Macedonia, stands out due to its distinctive green hue, […]

Cherry Quartz

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Cherry Quartz is a man-made gemstone that mimics the appearance of natural quartz, specifically the coloration of cherry blossoms. It’s a type of glass made by melting natural quartz crystals with various coloring agents. The result is a stunning pinkish-red gemstone with streaks of white or clear quartz, resembling the delicate beauty of cherry blossoms. […]