| 137 of 224 | << First | ◖ Prev | Next ◗ | Last >> | Back to gallery |
An Acicular Habit Round
With thin, needle-like crystals floating inside, this quartz sphere has a habit. But this is not a habit it would be able to break, as a habit in mineralogy is the acicular appearance of its crystal structure, and not an addiction. We feel better already.
Wagner Free Institute of Science
Philadelphia, PA
07.19.19
