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'Chalcedony'  | | | | Reference: | [Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.] |
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'Chalcedony var: Agate'  | | | | Reference: | [Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.] |
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'Chalcedony var: Carnelian'  | | | | Reference: | [Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.] |
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Quartz var: Amethyst  | | | | Reference: | [Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.] |
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