Thse crystals do not transmit light radiation.
Covalent crystals are not necessarily opaque. Think of diamond, pure quartz crystals, pure aluminium oxide crystals these all are colorless and transparent.
crystals that ar opaque
Metallic crystals absorb light in the visible spectra, diamond crystal do not.
phosphor
Clouds are not opaque; they are actually translucent. This means that they allow some light to pass through but scatter and reflect most of it. Clouds appear white because sunlight is scattered by water droplets or ice crystals in the cloud.
Pyrites are a class of minerals. Some people call them "fool's gold" because they sometimes look similar to gold, but they are not gold. Pyrite crystals are not transparent. They are opaque.
Pyrites are a class of minerals. Some people call them "fool's gold" because they sometimes look similar to gold, but they are not gold. Pyrite crystals are not transparent. They are opaque.
Pyrites are a class of minerals. Some people call them "fool's gold" because they sometimes look similar to gold, but they are not gold. Pyrite crystals are not transparent. They are opaque.
When light hits a transparent liquid crystal in a digital watch, it either passes through or gets reflected, depending on the electrical current applied to the crystal. Opaque liquid crystals block the light, preventing it from passing through. The manipulation of light by liquid crystals allows for the display of information in digital watches.
transparent to opaque between the crystals to the rock
Some stores that carry opaque stockings include Amazon, and Stocking Headquarters. Both companies have a large selection of opaque stockings from a number of manufacturers.
some crystals are and some aren't.