High-relief
spherical
spherical
Description
Transparent colorless with heavy black outline. Nonpleochroic, isotropic. Bubbles in optical cement are typically circular but can be any shape when filling voids in biological remains. Very high relief, and may be out of plane of focus of other materials due to larger size. May occur in any slide. Can be partially avoided by keeping bottle of mounting medium upside down when not in use, and mounting several slides at a time so that bubbles are only present in first one or two.
Transparent colorless with heavy black outline. Nonpleochroic, isotropic. Bubbles in optical cement are typically circular but can be any shape when filling voids in biological remains. Very high relief, and may be out of plane of focus of other materials due to larger size. May occur in any slide. Can be partially avoided by keeping bottle of mounting medium upside down when not in use, and mounting several slides at a time so that bubbles are only present in first one or two.