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Formula: variable because of organic origin
Ammolite mainly consists from Aragonite / Calcite (CaCO3), Pyrite (FeS2), and Quarz (SiO2 Mineral class: - Crystal system: - Mohs scale: variable, appr. 4.5 - 5.5 Density (g/cm3): variable, appr. 2.6 - 2.85 Colors: best qualities show the full spectrum Fluorescence: UV: yellowish Pleochroism: - Largest ammolite: 90 cm? Deposits: Alberta, Saskatchewan / Canada Montana / USA |
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Magrath, Cardston, Lethbridge, Kainah Indian reservation and surroundings, at the eastern slopes of the Rocky Mountains in S-Alberta, Canada, along the the banks of the St. Mary River. |
Größere Kartenansicht |
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Ammolite
Weight: 15.85 ct Origin: Alberta / Canada Photo by kind permission of © www.gemfrance.com, Dr. Laurent Sikirdji |
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Ammolite
Weight: 26.00 ct Origin: Alberta / Canada Photo by kind permission of © www.gemfrance.com, Dr. Laurent Sikirdji |
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Ammolite
Origin: Alberta / Canada Photo by kind permission of © skywalker.cochise.edu/wellerr/, Roger Weller. |
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