"Smokey Grey Quartz Lumps" likely refers to a type of quartz mineral that has a smoky gray or grayish-black coloration. Quartz is a common mineral found in various geological environments, and its color can vary based on impurities and the presence of certain elements. Smoky quartz gets its gray to blackish hue from the natural irradiation of aluminum-containing minerals within the quartz crystal structure.

Quartz is a versatile mineral used in various industries and applications, including:

Smoky quartz lumps can be used for decorative purposes in home decor, landscaping, and interior design.

Quartz is a key ingredient in the production of glass, silicon, and various industrial materials due to its high resistance to heat and chemicals.

High-purity quartz is used in the electronics industry for making quartz crystals and oscillators, which are essential components in electronic devices like watches, radios, and computers.