Ключевые слова: associated minerals, blocky crystals, brittleness, cleavage, colorful, columnar crystals, crustal movement, crystal clear, crystal closeup, crystal color, crystal growth, crystal hardness, crystal morphology, crystal structure, formation process, fracture, geological wonders, geometric shape, glassy gloss, gloss, hardness, hexahedron, hydrothermal action, irregular shape, magmatic activity, metallic gloss, metamorphism, mine, mineral crystals, mineral specimens, mohs hardness, natural crystals, naturally occurring, needleshaped crystals, octahedron, oily gloss, opaque crystals, origin, pearly gloss, plateshaped crystals, regular shape, slow growth, submarine hot springs, symbiotic crystals, toughness, translucent crystals, transparent crystals, volcanic eruption,