Final answer:
Ice is considered a mineral because it meets the criteria of being inorganic, naturally occurring, solid, and possesses a definite chemical composition and crystalline structure.
Step-by-step explanation:
Of the options provided, ice is considered to be a mineral.
To qualify as a mineral, a substance must generally meet four criteria: it must be inorganic, naturally occurring, solid at room temperature, and have a definite chemical composition and crystalline structure. While water (H2O) does not qualify because it's a liquid, ice fits the criteria if it forms naturally.
Plastic and charcoal are organic and hence not minerals. Granite, although a rock, is composed of a mixture of minerals such as quartz, feldspar, and mica.