Agate is a variety of silicon dioxide (SiO2); it is not a silicate.
Glass tends to have a more uniform color and may contain air bubbles or imperfections, whereas genuine rock agate has a more natural, layered appearance with varying colors and patterns. Agate is also harder than glass and can be scratched with a hardness tester or by testing it against other minerals with known hardness. Additionally, you can perform a specific gravity test to determine the density of the material, as agate will have a higher density than glass.
Striped quartz is a type of quartz crystal that features natural stripes or bands of color within the stone. These stripes are often caused by the presence of other minerals or impurities that have been incorporated into the quartz as it formed. Striped quartz can come in a variety of color combinations, such as black and white, blue and white, or red and white.
Agate is colloidal silica - it is a form of quartz.
The answr is agate
The chemical formula for agate is SiO2, which represents silicon dioxide. Agate is a variety of chalcedony, which is a form of quartz rich in silicon and oxygen.
The meaning of the word agate is an ornamental stone consisting of a hard variety of chalcedony, typically banded in appearance. Or a colored toy marble resembling a banded gemstone.
Agate :D
Agate, being a cryptocrystalline (microscopic crystal structure) form of quartz, does not have a crystal shape.
Agate,highly tinted quartz,and slate.
see if it has any solid quartz in it . Quartz makes it worth nothing.
An aggat is an obsolete form of agate, an uncrystallized variety of quartz.