The most common rock on Earth's surface, basalt is increasingly used in fiber form as a cheaper alternative to carbon fiber. Basalt fiber reinforced polymers…

…flooring in which the aggregate chips are semi-precious gemstones — amethyst, citrine, lapis lazuli, jade — rather than ordinary marble. The floor is ground and pol…

An igneous rock composed of quartz, feldspar, and mica, granite remains the premier countertop and cladding material for Tier 3+ construction. Its hardness a…

…rimary raw material for cement and concrete production. Limestone quarries operate around the clock feeding the construction industry. It is also used as a soil amen…

Metamorphosed limestone prized for its veined patterns and translucency. Marble floors and wall panels are a defining featu…

Natural volcanic glass that fractures into edges sharper than surgical steel. In 2200, obsidian is used in specialty scalpel blades, decorative objects, and …

A sedimentary rock made of cemented sand grains, sandstone is a common building material in arid regions. Its warm tones and easy workability make it popular…

A fine-grained metamorphic rock that cleaves into thin, flat sheets. Slate roofing can last centuries and remains popular in Tier 3-4 heritage districts. Its…

…s unremarkable in its construction — standard excavated limestone with concrete reinforcement at stress points, 3 meters wide, 2.8 meters high, ventilated by the sta…

…s unremarkable in its construction — standard excavated limestone with concrete reinforcement at stress points, 3 meters wide, 2.8 meters high, ventilated by the sta…