Other crossword clues for answer "SHALE"SHALEClaylike rockFissile rockOil sourceOil-yielding rockFine-grained rockFragile layered rockProduct of mud compactionRock used in frackingFracking stoneSedimentary rockFuel-yielding rockLayered rockCommon fossil rockRock made in layersHydrofracturing fractures itSynfuel sourcePetroleum sourceThin-layered rockSource of oilLayered fissile rockOil-bearing rockRock that may yield oilFracking targetMudstoneGrained rockFlagstone materialSource of aluminumStratified rockKerosene sourceRock often containing quartz__ oilFlaky rockLaminated rockNot exactly hard rock?Fuel oil sourceRiver-delta materialFossil holderOil-producing rockEarth's crust, mostlyRock source of petroleumRock made into flagstonesSource of keroseneRock.Petrologist's concern.Type of rock.Porous rock.Clayey rockEmergency oil sourceKind of rockOil rockEasily split rockOil yielderOne source of oilPotential oil source___ oilA source of oilArgillaceous rockRock that splits into bitsAn oil sourceCleavable rockType of oilKind of oilOily stoneRock that may hold fossilsBrick ingredientFossil mediumShelf materialFossil-yielding rockFossil sourceSlate, originallyRock used for flagstonesMineral layer involved in frackingSomething settled long ago?Fracking materialSomething fracked in frackingSome mudrockRock in which fossils can be foundThin-layered sedimentary rockBurgess ___ (rock bed noted for its fossils)Sedimentary stuffOily rockSedimentary rock well suited to preserving fossilsHardly hard rock?Possible source of petroleumRock involved in frackingFine-grained sedimentary rockMud, after centuriesRock made from layered mudRock that splits easilyRock that's frackedEasily cleaved rockFossil-yielding sedimentary rockOil-yielding mineralRock from which slate is formedSoft, sedimentary rockLaminar rockMudstone, e.g.Compressed clayMost common sedimentary rockMud, after compactionFrackable rockProduct of clay compactionRock formed from compressed mud