Rocks & Minerals 90%

Gneiss

________ looks similar to granite but it has layers.

inorganic substance

A rock is a naturally occurring, ________ comprised of many different minerals and other organic debris.

igneous rock

A(n) ________ is usually quite hard an solid, as all ________ have interlocking crystals.

non foliated

A(n) ________ foliated rock is a metamorphic rock where the crystals are randomly arranged.

Schist

________ is formed by mudstone or shale, and has decently large grains.

Rocks

________ are classified by how they are formed.

Pumice

________ is also very lightweight.

mineral

A(n) ________ is a naturally occurring, inorganic substance which includes a crystalline substance and a chemical composition.

Coal

________ is a deep black colour.

organic sedimentary rock

A(n) ________ is comprised of mostly dead plant and animal materials can in some cases can be layered.

Rock Salt

________- ________ is a chemical sedimentary rock where it is formed by sediments that are discovered after water evaporates.

Mohs Hardness Scale

The ________ indicates how prone a mineral or rock is to scratching.

Rocks

________ can be classified into 3 different groups based on how they are formed.

Colour

What ray of light shines onto the substance?

Colour

What ray of light shines onto the substance

Weight

How heavy is the object

Transparency

Is the object see through

Density

How compact are the substances particles

Hardness

Can this object get scratched or cut through by another object

Lustre

What type of shine is on the mineral

Streak

When scratched an object, wat colour powder does the mineral leave off

Granite

Granite is an intrusive igneous rock which is well known because of its salt and pepper colour

Diorite

Diorite is a form of granite and looks very similar to it

Pumice

Pumice is an extrusive igneous rock that is most known for its porous texture

Basalt

Basalt is an extensive igneous rock with a curved and glassy texture

Sandstone

Sandstone is a clastic sedimentary rock formed by compressed sand particles

Conglomerate

Conglomerate is a clastic sedimentary rock which is formed by small pieces of gravel stuck together with red mud

Shale

Shale is a clastic sedimentary rock which is formed by compressed silt or mud

Rock Salt

Rock salt is a chemical sedimentary rock where it is formed by sediments that are discovered after water evaporates

Chert

Chert is a chemical sedimentary rock comprised mainly of quartz

Dolomite

Dolomite is a chemical sedimentary rock comprised of calcite

Coal

Coal is an example of organic sedimentary rock and is mostly comprised of dead plant material compressed over the years

Coquina

Coquina is an organic sedimentary rock comprised of the shells of dead molluscs or clams

Chalk

Chalk is a variety of limestone which is known for its fine texture

Gneiss

Gneiss is a foliated rock where schist and other igneous rocks are put through intense heat and pressure

Slate

Slate is a fine grained and foliated rock, which is created under the alteration of shale or mudstone

Schist

Schist is a foliated metamorphic rock

Marble

Marble is a hard smooth rock made by limestone or chalk through strong heat and low pressure

Quartzite

Quartzite is created through high heat and pressure on quartz rich sandstone, which effectively fuses them together

Hornfels

Hornfels is a non foliated metamorphic rock which is usually quite dark in colour

Weight

How heavy is the object?

Transparency

Is the object see through?

Density

How compact are the substance’s particles?

Hardness

Can this object get scratched or cut through by another object? (Test with the Mohs Hardness Scale)

Streak

When scratched an object, wat colour powder does the mineral leave off?

Lustre

What type of shine is on the mineral?