ExploreMineral

Scoria

Scoria is a type of volcanic rock that forms when lava cools quickly. It is usually dark in color and has lots of small holes. People use scoria in gardening and landscaping to help soil retain water.

Appearance

The Scoria is a dark, porous volcanic rock known for its rough, bubbly texture. It often appears black, dark gray, or reddish-brown, looking like hardened lava foam. Its many holes, created by trapped gas bubbles, make it visually distinct and surprisingly lightweight.

KingdomAnimalia
Scoria
igneous trait badgevitreous_luster trait badgegeode trait badgecrystalline trait badge
Scoria

Category

Mineral

Rarity

Rare

Danger

2/5 · Low

Snaps

Be the first to snap!

Interesting facts

Did you know some ancient peoples used rocks like scoria to make surprisingly strong and lightweight concrete?

Scientists use scoria in special labs to practice for missions to Mars, as it resembles the Martian surface!

Scoria forms in fiery volcanic eruptions when gas-rich lava rapidly cools and solidifies!

This rock can sometimes float on water, acting like a natural raft due to its many trapped air pockets!

Special abilities

Ability

Lightweight Builder

Scoria has a very low density due to its trapped gas bubbles, making it an excellent lightweight material for construction.

Ability

Natural Filter

Scoria's interconnected pores make it great for filtering water or improving soil drainage in gardens.

Ability

Heat Keeper

Scoria can absorb and retain heat well, which makes it useful in fire pits, barbecues, and sauna rocks.

Measurements & details

Color Range
black, dark gray, reddish-brown
Hardness
5
Luster
dull
Specific Gravity
1.2

Traits

Also known as

No aliases listed yet.

Collections

Safety

Danger

2/5 · Low

Scoria is generally safe to handle, but be cautious with sharp edges.

Frequently Asked Questions

What colors can Scoria be?

black, dark gray, reddish-brown

How hard is Scoria?

5

What kind of luster does Scoria have?

dull

What is Scoria's specific gravity?

1.2

Snap Map

Zoom in to split clusters and explore where this object has been snapped.

Loading map…

Recent Snaps

Recent snaps will appear here as new observations are added.

More Mineral