tuff
Compacted ash stone
Tuff is a type of rock formed from volcanic ash that has been compacted and ceite'd together.
It ranges from soft and porous to quite hard, depending on how much the ash particles have fused.
Tuff has been used as building stone since ancient times—the Romans quarried it extensively.
Not to be confused with tough, which sounds identical.
Hot eruption debris
- ashCombustion's powdery remains
- eruptionViolent sudden release
- pumiceLightweight volcanic abrasive
- calderaCollapsed volcanic summit basin
crater · obsidian · scoria · vent · magma · fumarole · geothermal · welded
Start burning something
- lithifiedConverted into rock
- stratigraphyStudy of rock layers
- sedimentParticles settling in liquid
- fossilizationOrganic remains becoming mineral
petrology · outcrop · bedrock · formation · deposit · layer · strata · cemented
Extracted from open pit
- blocksObstructs or sections
- masonryBuilding with mortared blocks
- buildingEnclosed roofed structure
- carvedCut to create form
Roman · ancient · durable · lightweight · insulating · aggregate · cement · architectural
pyroclastic
Hot eruption debris
caldera · crater · obsidian · scoria · vent · magma · fumarole · geothermal · welded · tephra
ignite
Start burning something
- lithifiedConverted into rock
- stratigraphyStudy of rock layers
- sedimentParticles settling in liquid
fossilization · petrology · outcrop · bedrock · formation · deposit · layer · strata · cemented · compacted
quarried
Extracted from open pit
carved · Roman · ancient · durable · lightweight · insulating · aggregate · cement · architectural · sculptural
plateau
Flat highland area
- canyonDeep river-cut gorge
- cliffVertical rock wall
- escarpmentSteep slope dividing elevations
mesa · ravine · terrain · outcrop · ridge · badlands · erosion · weathered · exposed · bluff
- geologybedrock, fault lines, faults, rock, basalt
- mineralsquartz, marble, granite, limestone, sandstone
- rocksbasalt, granite, sandstone, marble, shale
- volcanoesvolcano, volcanic eruption, Mount Fuji, volcanic eruptions, caldera
- earth materialsrock, soil, mud, clay, mineral
- Informal Spellingsgonna, wanna, gotta, oughta, shoulda