Facts about Crystals
- 10
Tourmaline crystals can be piezoelectric and pyroelectric simultaneously, generating electrical charge both when mechanically stressed and when heated or cooled, making them valuable for temperature sensors and industrial applications.
- 09
Piezoelectric crystals like quartz generate electrical charge when mechanically compressed, a property that powers lighters, microphones, and ultrasound devices through controlled deformation.
- 08
Snowflakes form hexagonal crystal structures because water molecules bond at 120-degree angles, creating the six-fold symmetry that makes no two snowflakes identical among billions that fall annually.
- 07
Calcite crystals can split light into two distinct rays through birefringence, an optical property that medieval Vikings likely exploited using Iceland spar to navigate across cloudy seas.
- 06
Moissanite crystals, first synthesized by Henri Moissan in 1893, refract light so intensely they display more rainbow fire than diamonds, making them detectable through specialized gemological testing.
- 05
Diamonds exhibit birefringence, bending light into two rays as it passes through the crystal structure, which gemologists use to distinguish genuine diamonds from cubic zirconia counterparts.
- 04
Quartz crystals vibrate at precisely 32,768 hertz when cut to specific dimensions, making them the standard timekeeping mechanism in virtually all digital watches and clocks since the 1960s.
- 03
Salt crystals grown in laboratory conditions can reach optical transparency comparable to natural quartz, making them useful for infrared optics and scientific instruments since the 1950s.
- 02
In 1912, Max von Laue discovered that X-rays could be diffracted by crystal lattices, proving the atomic structure of crystals and earning him the Nobel Prize in Physics.
- 01
The largest crystal ever found is a selenite crystal in Naica, Mexico measuring 12 meters long and weighing 55 tons.