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Crystal Encyclopedia

Precious gemstones

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Baroque Pearls   Morganite   Teal Sapphire   Gahnite   Paraíba Tourmaline   Phenakite   Nigerian sapphires   Phenacite   Serendibite   Jacinth (Zircon)   Iolite (Water Sapphire)   Black Pearls   Clinohumite   Peridot   Iolite or Cordierite   Gahnospinel   Sapphirine   Rubellite   Pink Star Sapphire   Red Diamonds   The Blue […]

Axinite

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Axinite is a group of uncommon, typically brown or violet-brown borosilicate minerals that form in specific geological settings. Known for its sharp, wedge-shaped crystals and unique properties, axinite has captivated geologists and mineral collectors alike. Contents Mineralogy and Properties of Axinite Crystal Structure and Physical Characteristics Formation and Geology of Axinite Geological Occurrences and Localities […]

Chlorastrolite (Green Starstone)

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Chlorastrolite, also known as the “Green Starstone” or “Michigan Greenstone,” is a rare and distinctive variety of the mineral pumpellyite, a silicate mineral. What sets chlorastrolite apart from other minerals is its unique green color and characteristic starburst or turtleback pattern. Green Color: Chlorastrolite gets its name from its striking green color. It typically ranges […]

Poudretteite

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Poudretteite is a rare and valuable gemstone that belongs to the spodumene mineral group. It is named after the Poudrette family, owners and operators of the quarry where it was first discovered. The gemstone is known for its striking pink to violet hues and is highly prized by collectors and gem enthusiasts. Composition: Poudretteite is […]

Tsavorite

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Tsavorite is a gemstone that belongs to the garnet family. It is known for its stunning green color, which ranges from a vivid, intense green to a deep, forest green. Tsavorite is highly valued for its color, brilliance, and rarity, making it a popular choice for jewelry. Origin: Tsavorite was first discovered in the 1960s […]

Shattuckite

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Shattuckite is a rare and visually striking mineral that is prized by mineral collectors and enthusiasts for its vibrant blue and green-blue color. It is a copper silicate mineral and is often found in association with other copper minerals like azurite, malachite, and chrysocolla. Shattuckite’s name is derived from the Shattuck Mine in Bisbee, Arizona, […]

Lake Superior Agate

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Lake Superior Agates are renowned gemstones prized for their unique beauty and rarity. These agates are found in the Lake Superior region of the United States and Canada, particularly along the shores of Lake Superior, hence their name. Characterized by their distinctive banding patterns, Lake Superior Agates typically feature layers of various colors, including red, […]