Smoky Quartz is generally considered a semi-precious stone and can be used in exterior applications in cold climates. However, it is important to note that every stone has different properties, and their durability and resistance to temperature changes can vary. Smoky Quartz, like other quartz varieties, has good heat resistance and is generally suitable for exterior use. However, it is recommended to consult with a professional stone supplier or a geologist who can provide specific information regarding the particular type of smoky quartz you are considering for your exterior application. They can give you guidance on its frost resistance, potential color fading, and any other factors relevant to its performance in cold climates.

Yes, Smoky Quartz semiprecious stones can be used in floor coverings. Smoky Quartz is a durable and hard stone that can withstand foot traffic, making it suitable for use as a flooring material. It can be cut into tiles or slabs and installed as a floor covering in various areas such as entryways, bathrooms, or even as decorative accents in larger flooring projects. Additionally, Smoky Quartzs unique color and veining patterns can add a touch of elegance and natural beauty to any space.

Smoky quartz is not recommended for outdoor use as it is a semiprecious stone that is relatively softer than other stones commonly used outdoors, such as granite or marble. Outdoor stones need to withstand harsh weather conditions, including exposure to UV rays, temperature fluctuations, and moisture. Smoky quartz may deteriorate or fade more quickly when exposed to these elements. Additionally, its crystalline structure may be vulnerable to damage from freeze-thaw cycles. It is generally more suitable to use more durable and weather-resistant stones for outdoor applications.