Virtually all rock contains mineral crystals of various sizes. Most volcanic rocks such as granite contain crystals of quartz and other minerals. Crystal size varies depending on the speed of cooling.
Igneous rocks are the ones that have crystals in them. They are or were formed by molten magma, and the crystals inside them depend entirely on the conditions at the time of their cooling.
All rocks have crystals in them, what ever king they are. If they cool down slowly they tend to have bigger ones and if they cool down quickly they have smaller ones. SIMPLES!!
all of them they cool of and become a crystal.
Euhedral crystals of quartz are sometimes referred to as 'rock crystal'.
Igneous, igneous rocks are formed by mgma (inside earth) or lava (outside earth) that cools and hardens
Rock crystal generally refers to large euhedral crystals of quartz, the mineral.
all igneous rocks contain crystals just some you can't see some metamorphic rocks do also
Almost all (with exceptions) rock contains crystals, many of which are not visible without magnification.
igneous rocks
Sodium's crystal structure is cubic.
A crystal is the hardest rock in the world and it would take more than you imagine to crush/brake one.
Cannot answer without knowing type of crystal and either its mass or size.quartz crystal, nonesugar crystal, nonesalt (sodium chloride) crystal, nonecalcite crystal, need to know either mass or sizeice crystal, noneselenite crystal, need to know either mass or sizeetc.
a crystal is made from oxygen and silicon but i dont no what type of crystal it is :) sorry...hope that helps
Metamorphic rock
any type of rock is a crystal it might not be scientific though....
Rock Crystal
rock crystal
Rock crystal.
Quartz
Rock crystal.
The appearance and type of mineral crystal appearing in a rock is dependent on the type of rock and the method by which it is created.
Rock crystal
No. A crystal is the solid form of a mineral. Mineral crystals are present in nearly every rock, regardless of type.
Fine crystal grain.
fine
Small crystal grains form from rapid cooling of magma resulting in an aphanitic rock texture.