The page is a type of crystalline minerals rot under pressure and heat beneath the crust such as several million years of pure elemental carbon is a substance that has the most strength in the jewellery of all kinds.
President Bush is gypsum crystals under pressure and heat under the earth's crust for millions of years of pure carbon material with a hardness in the jewel of all kinds.
Diamond is a kind of mineral crystals under pressure and heat under the crust is several ล้านปี of carbon is pure substance with all kinds of hardness in gems