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Pietre preziose di capesante
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Pietre preziose di sardonice
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Pietre preziose sarde
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Sarcolite Gemstones
Introduction to Sarcolite Sarcolite is a rare and intriguing mineral that has captivated the interest of gemologists and mineral enthusiasts alike. First identified in the early 19th century, its name is derived from the Greek word "sarx," meaning flesh, referencing its typical pink to reddish hues. This mineral is primarily found in volcanic regions, notably within the Somma-Vesuvius complex in Italy. Chemical Composition and Structure Chemically, sarcolite is classified as a silicate mineral with the formula NaCa₆Al₄Si₆O₂₄F. Its crystalline structure belongs to the isometric system, often forming well-defined, transparent to... 続きを読む
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Pietre preziose di zaffirina
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Pietre preziose di corindone naturale zaffiro
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Pietre preziose naturali di zaffiro
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