1. Tabular crystals usually have two twinned planes parallel to each other.2. Tabular crystals probably existed from very early days of silver-gelatin photography.3. Annite is monoclinic and contains tabular crystals and cleavage fragments with pseudohexagonal outlines. 4. The Efke films are more forgiving of exposure variations than modern tabular crystal films. 5. The thin, flat, tabular crystals , when joined in groups, are called " cockscombs ." 6. However, it was about 1970 when emulsion engineers could make emulsions that consisted mainly of tabular crystals . 7. Moreover, it was not until the 1980s that tabular crystals began to be used in production emulsions. 8. Eskebornite is sometimes found as thick tabular crystals , but is more often found intergrown with other selenides. 9. It crystallizes in the orthorhombic crystal system and forms radiating rosettes and pseudo-hexagonal tabular crystals which are commonly twinned. 10. Lanthanites are frequently found as secondary minerals formed by the weathering of other minerals and occur as scales or tabular crystals .
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