Gallery
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Calcite crystals inside a test of the cystoid Echinosphaerites aurantium (Middle Ordovician, northeastern Estonia).
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Calcite rhomb from Iceberg claim, Dixon, New Mexico showing double refraction.
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Mississippian marble (made of calcite) in Big Cottonwood Canyon, Wasatch Mountains, Utah.
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Thin section view of calcite crystals inside a recrystallized bivalve shell in a biopelsparite.
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Calcite containing niobium (giving it distinctive bluish color), from Medford Quarry, Maryland.
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Nailhead spar calcite.
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Reddish rhombohedral calcite crystals from China. Its red color is due to the presence of iron.
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Calcite fluoresces pink under long wave ultraviolet light.
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Calcite fluoresces blue under short wave ultraviolet light.
Read more about this topic: Calcite
Famous quotes containing the word gallery:
“I never can pass by the Metropolitan Museum of Art in New York without thinking of it not as a gallery of living portraits but as a cemetery of tax-deductible wealth.”
—Lewis H. Lapham (b. 1935)
“Each morning the manager of this gallery substituted some new picture, distinguished by more brilliant or harmonious coloring, for the old upon the walls.”
—Henry David Thoreau (1817–1862)
“I should like to have seen a gallery of coronation beauties, at Westminster Abbey, confronted for a moment by this band of Island girls; their stiffness, formality, and affectation contrasted with the artless vivacity and unconcealed natural graces of these savage maidens. It would be the Venus de’ Medici placed beside a milliner’s doll.”
—Herman Melville (1819–1891)