Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species. Within a mineral species there may be variation in physical properties or minor amounts of impurities that are recognized by mineralogists or wider society as a mineral variety.
Ruby, Emerald, Sapphire, Amethyst , Diamonds, Spinel, Opal
Corundum, Beryls, Quartz,
Amethyst
Rose-Quartz
Rock-Crystal
Citrine
Smoky-Quartz
Rutile-Quartz
Tiger-eye
Jasper
Blood-stone
Carnelian
Chalcedony
Agate
Moss-agate
Amazonite
Rhodonite
Aventurine
Obsidian
Peridot
Moon-stone
Malachite
Hematite
Rhodochrosite
Sodalite
Turquoise
Unakite
