| Id | Identification Type | Name | Description | Distinguishing Features | Tags |
|---|---|---|---|---|---|
| 49 | Mineral | Zeolite | Class of hydrous aluminosilicate minerals commonly occurring through alteration of volcanic glass. Common zeolite minerals (phillipsite; clinoptilolite) are weakly birefringent, colorless or faintly yellowish, tabular or prismatic. Phillipsite may form cruciform twins or rosettes. Associated with volcaniclastic sediments and their alteration products. | ||
| 70 | Mineral | Zircon | Transparent colorless to pale pink. Nonpleochroic. High order birefringence and characteristically vivid interference colors in cross-polarized light. Elongate or stubby euhedra, often with inclusions aligned along the long axis of the grain. Very high relief. Straight extinction. | Heavy-mineral
High-relief |
silicate inclusions nonpleochroic high-birefringence transparent |
| 152 | Contaminant | Zorbitrol | Zorbitrol is a hydrophilic sodium acrylate polymer sometimes used to physically stabilize the surface of sediment cores. | contaminant |
116 Church Street NE, Minneapolis, MN 55455
P: 612-626-7889