Witherite
Witheriet, Witherit, Witherita, Витерит, 毒重土石, 硅鋅礦
Commonly known
rarer (so called collectors stones)
very rare (rarities)
relatively rare organic material
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Formula: BaCO3
Mineral class: carbonates Crystal system: orthorhombic Mohs scale: 3 - 3.5 Density (g/cm3): 4.22 - 4.31 Refractive index: 1.529 - 1.677 Cleavage: perfect Colors: colorless, white, grey, yellowish, orange, green Transparency: transparent - translucent Luster: vitreous Fluorescence: SW and LW UV: pale blue Pleochroism: - Largest crystal: 12 cm? Deposits: worldwide Discovery: 1789 1st Description: 1790 (Werner) Name: in honor of the British mineralogist William Withering (1741 - 1799) Witherite is poisonous because it contains Barium. |
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Whiterite Mineral
Size: 3 x 1.7 x 1.4 cm Origin: Minerva #1 Mine / Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © www.kqminerals.com |
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Witherite
Weight: 1.40 ct Origin: Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © Darlene Cobler |
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Whiterite Mineral
Size: 7.6 x 7.5 x 5.1 cm Origin: Nentsberry Haggs Mine / Alston Moor / Cumbria / England / UK Photo by kind permission of © www.irocks.com |
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Witherite
Weight: 1.18 ct Origin: Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © Darlene Cobler |
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Witherite Mineral / SW UV
Size: 3.5 x 3.3 x 2.1 cm Origin: Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © www.kqminerals.com |
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Witherite / SW UV
Size: 1.47 x 1.43 x 0.76 cm Weight: 12.11 ct Origin: USA Photo by kind permission of © www.freakingcat.com |
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Witherite Mineral
Size: 3.7 x 2.2 x 1.9 cm Origin: Rosiclaire / Hardin County / Illinois / USA Photo by kind permission of © www.irocks.com |
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Whiterite Mineral
Size: 5.2 x 2.9 x 2.4 cm Origin: Minerva No. 1 Mine / Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © www.irocks.com |
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Witherite
Size: 1.38 x 0.91 x 0.66 cm Weight: 8.36 ct Origin: Hardin County / Illinois / USA Photo by kind permission of © www.freakingcat.com |
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Whiterite Mineral
Size: 7.4 x 6.7 cm Origin: Minerva No. 1 Mine / Cave-in-Rock / Hardin County / Illinois / USA Photo by kind permission of © www.exceptionalminerals.com |
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