basalt

As nouns the difference between basalt and terracotta

is that basalt is basalt while terracotta is a hard red-brown unglazed earthenware, used for pottery and building construction.

As an adjective terracotta is

of the colour of.

As nouns the difference between chert and basalt

is that chert is (geology|uncountable) massive, usually dull-colored and opaque, quartzite, hornstone, impure chalcedony, or other flint-like mineral while basalt is basalt.

As nouns the difference between basalt and null

is that basalt is basalt while null is zero, nil; the cardinal number before einn.

As a noun basalt

is basalt.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between moorstone and basalt

is that moorstone is a species of english granite, used as a building stone while basalt is basalt.

As a noun basalt

is basalt.

As a proper noun emery is

.

As nouns the difference between hornfels and basalt

is that hornfels is any of a series of contact metamorphic rocks that have been baked and indurated by the heat of intrusive igneous masses and rendered massive, hard, splintery, and in some cases exceedingly tough and durable while basalt is basalt.

As nouns the difference between quartz and basalt

is that quartz is the most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO₂. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment while basalt is a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the Earth's oceanic crust.

As nouns the difference between greywacke and basalt

is that greywacke is a hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix while basalt is a hard mafic igneous rock of varied mineral content; volcanic in origin, it makes up much of the Earth's oceanic crust.

As nouns the difference between basalt and basalt

is that basalt is basalt while basalt is basalt.