Perhaps :-
A scree
A moraine
A drumlin
A landslip / landslide or rockslide
A lahar
An a'a lava flow
A conglomerate
A beach
A dilapidated building
A "rock pile".
A mountain
Such rocks are called porphyritic.
Large cracks in rocks are called, fracture or fissure.
The typical landform is a glacial moraine, a pile of rock debris that sometimes appears as shoals in shallow inland waters.
Well, if you say massive there can be a lot of options, massive can be mass, in this case, i think we are refering to mass, so, imagine that you have a pile of rocks against a pile of feathers, if we add more feathers to it, then maybe we can make it massive but in the other hand, you have to think about that a rock, if it is weighted against a lot of feathers, then the rock is massive, why? because only one rock is available to weight more than a lot of feathers
A landslide.
detrital slope
A single 'piece' of sand is called a 'grain'.
A large pile is called a heap or a mound.
A skirt pile can refer to a pile of clothing in a female's dressing room. Also, a skirt pile can be a pile of dirt or rocks that are pushed to the side when clearing with large equipment.
Inertia.
A pile of things can be called: mound - an amount of something in a pile heap - a large pile of something, especially an untidy pile stack - a pile of things placed one on top of the othe mountain - a large pile or amount of something pyramid - a pile of things arranged in the shape of a pyramid bank - a long pile of earth, snow, or sand drift - a large pile of snow or sand formed by the wind wad - a thick pile or ball of papers, money, or thin cloth
the large plutonic rocks formed by the hardening of magma into the earths crust is called the ignius rocks
The word left by The Lorax by a small pile of rocks was "UNLESS."
Such rocks are called porphyritic.
a pile of rocks in space
tor - a prominent rock or pile of rocks on a hill
there is a big pile by the bridge