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Crystals |
Record 1 to 25 of 206 |
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Albite "Triclinic. Usually in tabular crystals parallel to brachypinacoid." — Ford, 1912... |
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Albite "Triclinic. Sometimes elongated parallel to b crystal axis." — Ford, 1912... |
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Amphibole Amphibole.... |
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Amphibole Amphibole.... |
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Amphibole "Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each other." — Ford, 1912... |
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Amphibole "Monoclinic. Crystals prismatic in habit; the prism faces make angles of 55 and 125 degrees with each other." — Ford, 1912"... |
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Anglesite Anglesite.... |
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Apatite "A complex crystal of apatite with the faces of a third-order pyramid upon it." — Ford, 1912... |
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Apatite "Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular. Usually terminated by prominent pyramid of first order and frequently a basal plane." &mdas... |
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Apatite "Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular. Usually terminated by prominent pyramid of first order and frequently a basal plane." &mdas... |
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Apophyllite Apophyllite.... |
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Apophyllite Apophyllite.... |
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Apophyllite "Tetragonal. Usually shows a combination of prism of second order, pyramid of first and basal plane." — Ford, 1912... |
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Aragonite "Orthorhombic. Acicular pyramidal; consisting of a prism terminated by a combination of a very steep pyramid and brachydome." — Ford, 1912... |
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Aragonite "Orthorhombic. Tabular; consisting of prominent brachypinacoid faces modified by a prism and a low brachydome." — Ford, 1912... |
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Arsenopyrite "Orthohombric. Usually in tabular diamond-shaped crystals, formed by a short prism terminated by low brachydomes. The brachydomes are usually striated parallel to the brachy-axis." — Ford, 19... |
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Asymmetric A crystalized shape that is not symmetrical in any way.... |
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Axinite Axinite.... |
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Axinite "Triclinic. Crystals usually thin with sharp edges but varied in habit." — Ford, 1912... |
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Axis, symmetry "A crystal has a center of symmetry if an imaginary line is passed from some point on its surface through its center, and a similar point is found on the line at an equal distance beyond the center." ... |
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Barite Barite.... |
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Barite "Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence of a short prism. Both macro- and brachydomes usually present, either beveling the corners of th... |
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Barite "Orthohombic. Crystals usually tabular parallel to base; often diamond shaped because of the presence of a short prism. Both macro- and brachydomes usually present, either beveling the corners of th... |
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Beryl "Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present consist only of prism of first order and base." — Ford, 1912... |
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Beryl "Hexagonal. Strong prismatic habit. Frequently vertically striated and grooved. Forms usually present consist only of prism of first order and base. Small pyramid faces of both the first and secon... |
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