scaur

noun 0.599

slag

noun 0.592

scorch

noun 0.590

scree

noun 0.578

lava

noun 0.570

scurf

noun 0.569

scorcher

noun 0.559

scorching

noun 0.558

porphyry

noun 0.555

magma

noun 0.550

pumice

noun 0.549

pyroclastic

noun 0.547

skarn

noun 0.546

obsidian

noun 0.545

scour

noun 0.539

gabbro

noun 0.537

sorus

noun 0.536

scourge

noun 0.534

granophyre

noun 0.533

sorb

noun 0.532

scorn

noun 0.531

cinder

noun 0.531

scapolite

noun 0.529

basalt

noun 0.528

fire scar

noun 0.527

scorpion

noun 0.526

spore

noun 0.524

volcanic glass

noun 0.523

cinerea

noun 0.523

scum

noun 0.523

scab

noun 0.522

caldera

noun 0.522

sorra

noun 0.522

scot

noun 0.520

dolerite

noun 0.518

gorse

noun 0.518

scarp

noun 0.517

scoter

noun 0.515

scorner

noun 0.515

skerry

noun 0.514

volcanic ash

noun 0.514

scoparius

noun 0.513

scrod

noun 0.513

scandium

noun 0.512

eschar

noun 0.511

thoria

noun 0.511

tephra

noun 0.511

trachyte

noun 0.510

pyroclastic flow

noun 0.509

lahar

noun 0.507

screed

noun 0.506

troctolite

noun 0.505

sora

noun 0.505

igneous rock

noun 0.504

gora

noun 0.504

pyrope

noun 0.504

dross

noun 0.504

rhyolite

noun 0.503

schist

noun 0.503

scow

noun 0.502

volcanic

noun 0.502

scabious

noun 0.501

palagonite

noun 0.500

magmatic

noun 0.500