Quick Answer: A set of 15 labelled igneous rock specimens used to teach how rocks form from cooling magma or lava, and how the rate of cooling produces the coarse or fine-grained textures used to classify them.
Product Description
The Igneous Rocks Set, Collection of 15 Igneous Rocks covers the first major rock type in the rock cycle: rock formed directly from the cooling and solidification of molten material. How quickly that material cools has a major effect on what the resulting rock looks like, which makes igneous rocks a good entry point for teaching rock classification by texture.
Magma that cools slowly underground forms intrusive (plutonic) rocks with large, visible mineral crystals, such as granite. Lava that cools quickly at the surface forms extrusive (volcanic) rocks with much smaller crystals, such as basalt, or in extreme cases no visible crystals at all. This 15-specimen set gives students a range of textures to compare directly, from coarse-grained to fine-grained to glassy or gas-bubble-textured examples.
Composition is the second major classification axis: felsic rocks are lighter in colour and rich in quartz and feldspar, while mafic rocks are darker and richer in iron- and magnesium-bearing minerals. Comparing texture and composition together gives students a genuine classification framework rather than simple memorisation of rock names.
Specimen Details
| Detail | Description |
|---|---|
| Product Type | Igneous rock specimen collection |
| Set Size | 15 labelled specimens |
| Specimen Form | Hand samples showing intrusive and extrusive textures |
| Coverage | Range from coarse-grained intrusive to fine-grained or glassy extrusive rocks |
| Storage | Compartmented tray or box |
| Recommended Level | Secondary school earth science, introductory geology |
Applications
- Teaching the rock cycle, starting with igneous rock formation
- Classifying rocks by texture (coarse-grained vs fine-grained) and by composition (felsic vs mafic)
- Connecting cooling rate to crystal size through hands-on comparison
- Combining with a rock-forming minerals set to identify minerals within igneous samples
- Earth science and geology coursework on volcanic and plutonic processes
Care & Handling
- Handle gently; some lightweight, porous specimens (such as vesicular textures) can be fragile
- Return each specimen to its labelled tray slot after use
- Store away from moisture and direct sunlight
- Keep specimens with glassy textures separated to avoid chipping edges
- Avoid unnecessary breaking, which can obscure the labelled texture used for identification
Why Choose LabEquip
This igneous rock set builds directly on LabEquip’s Forming Minerals Set, Collection of 10 Rocks Forming Minerals, letting students spot the minerals they have already learned inside real rock samples. It is also part of our full Educational Rock and Minerals range, and pairs with the Metamorphic Rocks Set, Collection of 15 Metamorphic Rocks for teaching the complete rock cycle.
Frequently Asked Questions
What is included in the Igneous Rocks Set, Collection of 15 Igneous Rocks?
The set contains 15 individually labelled igneous rock specimens showing a range of textures, from coarse-grained intrusive rocks to fine-grained or glassy extrusive rocks, supplied in a compartmented tray.
What is the difference between intrusive and extrusive igneous rocks?
Intrusive (plutonic) rocks form from magma that cools slowly underground, producing large visible crystals. Extrusive (volcanic) rocks form from lava that cools quickly at the surface, producing much smaller crystals or a glassy texture.
How are igneous rocks classified?
They are typically classified by texture (related to cooling rate) and by composition, ranging from lighter-coloured felsic rocks to darker mafic rocks.
What subjects or grade levels is this set suited for?
It is designed for secondary school earth science and introductory geology classes covering rock formation and the rock cycle.
How should the igneous rock specimens be stored?
Keep them in their labelled tray slots, store away from moisture, and handle porous or glassy specimens gently since they can be more fragile.
Does LabEquip offer other rock sets to complete a rock cycle unit?
Yes. The Forming Minerals Set prepares students to recognise minerals within these rocks, and the Metamorphic Rocks Set, Collection of 15 Metamorphic Rocks continues the rock cycle.
Last Updated: September 2026
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