Stone Surface Guide
Quartz Surface
Characteristics & Material Properties
Visit quartz worktops to learn about quartz and discover colours.
Last updated: 26 March 2026
Crystalline Mineral Composition of Quartz Surfaces
A quartz surface contains a naturally occurring crystalline mineral of silica, which is found widely in the Earth’s crust.
Quartz Surface Content
Although quartz worktops are popular in the engineered worktops market, confusion over what quartz is can be daunting for those searching for their solid worktop surface. While quartz is a naturally occurring crystalline mineral, the use of the name for a man-made worktop surface only adds to misunderstanding. It is important to note that all rocks contain some mineral quartz, and metamorphic rock 'Quartzite' has a high content due to its formation from sandstone.
For how quartz is transformed into engineered stone slabs, see our guide to engineered quartz.
'Quartz' used for kitchen worktops typically contains a higher proportion of natural mineral content than most other engineered worktop materials.
Quartz vs Quartzite: Key Differences Explained
When comparing quartz vs quartzite worktops, it’s important to understand that, despite their similar names, they are very different materials.
Natural vs Engineered
Both quartz and quartzite contain the natural mineral quartz, but their composition, durability, and maintenance requirements vary significantly.
Engineered Quartz
Quartz worktop surfaces are engineered worktops made by combining natural quartz crystals with resins and pigments. This creates a non-porous, highly durable material that is resistant to stains and easy to maintain.
Natural Quartzite
quartzite worktops are 100% natural stone formed when sandstone is subjected to intense heat and pressure over millions of years. This process creates a hard, marble-like surface with unique natural patterns.
Quartz / Quartzite Comparsion Chart
Below is a quick quartz vs quartzite comparison to help you choose the right material for your space:
| Quartz Worktops | Quartzite Worktops |
|---|---|
| Engineered stone | Natural stone |
| Quartz crystals + resin | Metamorphosed sandstone (natural quartz) |
| Consistent, uniform designs | Unique, natural veining |
| Non-porous | Porous (requires sealing) |
| Low maintenance | Moderate maintenance |
| Moderate (resin can be damaged) | High heat resistance |
| Highly durable | Extremely hard and durable |
| Best for busy kitchens, low care | Best for natural, high-end finishes |
This following information focuses specifically on quartz, exploring its mineral composition and chemical properties in more detail.
Mineral & Chemical Structure of Quartz
As previously mentioned, the engineered quartz material is composed with a high mineral content, mainly consisting of Silica.
Silicon dioxide (silica) is recognized as the second most abundant mineral in Earth's continental crust, after feldspar. So, what exactly is it? Let's explore the mineral and chemical soup from which it forms...
Silica
The chemical compound silica, known as silicon dioxide (SiO₂), is the foundation from which the crystalline mineral quartz naturally forms. It can be re-extracted from quartz through various processes, primarily involving heating. With increasing regulations on silica dust during the fabrication of engineered quartz surfaces, new eco-friendly surface options are emerging in the market, featuring significantly reduced silica content. These greener alternatives are designed to meet both safety standards and consumer demand for sustainable materials.
Elements are Chemical Substances
The formation of crystals begins with the heating and cooling of elements. A process that happens in pockets created by a superheated mixture of base minerals and gases. Elements are chemical substances that cannot be broken down by chemical reactions and play a crucial role in this process.
As granitic melts (Magma) cool, the combination of fluids and gases leads to fractionation, causing water to exsolve to facilitate the formation of minerals through separation. This intricate process results in the beautiful crystals we see today.
As the mineral rich granitic melt ascends, water and/or carbon dioxide is added causing rock to melt at lower temperatures. This process is called flux melting and turns the overlying solid crust back into magma. The ascending granitoid magmas comprise of a silica-rich slurry of melt and residue that recrystallizes into a thick paste as it cools.
Crystallization & Nucleation
Crystallization is the process where elements are organized into a solid form in a structure known as a crystal.
The crystallization process can be divided into 2 key processes, Nucleation and Crystal Growth.
The initial process in the formation of a crystal from a solution, liquid, or a vapour along with a series of heating and cooling events, is called Nucleation. A small portion of the molecular structure arranges itself in a pattern of a crystalline solid. This then forms a framework for additional particles to be deposited. The most likely cause for this arrangement is frequency and vibration.
Crystal growth and its growth rate is determined by a variety of conditions. The availability of silica (Silicon Dioxide SiO2), minerals and water help determine this rate. The crystal type is determined by temperature, air pressure and rate of fluid evaporation.
When the mineral silica and gases are subjected to extreme heating and cooling events, the minerals crystallize forming crystals.
Quartz Crystals & Its Colours
Quartz crystals are often seen in its purest form as colourless, however, trace impurities during crystallisation can tint them with colour. Colours of crystallized mineral have no correlation to engineered quartz surface colours.
Quartz crystal colours according to trace impurities / minerals:">
- Light Pink:
Infusion of titanium, iron or manganese - Opaque Milky White:
Aerated with minute gas or oxygen bubbles - Purple and Yellow:
Infusion of Iron - Brown Tint or Patches:
Caused by a larger quantity of Silicon or Impurities
Surface Colours
During the manufacture of engineered stone surfaces, dyes and pattern fillers are added at various stages, depending on the intended design and natural stone being imitated.
- Mirror / glitter elements: Imitates mica that is often seen in granite slabs
- Veins:
As seen in natural marble and quartzite - Fossils and grains:
Found predominately in limestones and some marbles and Granites
Quartz Surface & Quartz vs Quartzite FAQs
Quick answers to common questions on quartz surfaces and quartz vs quartzite.
What is the difference between quartz and quartzite worktops?
The main difference between quartz and quartzite worktops is that quartz is an engineered material made from natural quartz crystals and resin, while quartzite is a completely natural stone formed under heat and pressure. Quartz offers consistency and low maintenance, whereas quartzite provides unique natural patterns and higher heat resistance.
Is quartz or quartzite better for kitchen worktops?
It depends on your priorities. Quartz is better for low maintenance and stain resistance due to its non-porous surface. Quartzite is better if you prefer a natural stone look and higher heat resistance, but it does require regular sealing.
Does quartzite stain more easily than quartz?
Yes, quartzite is more porous than quartz, which means it can stain if not properly sealed. Quartz worktops are non-porous, making them more resistant to stains from common kitchen spills like wine, oil, and coffee.
Which is more durable: quartz or quartzite?
Both materials are highly durable, but quartzite is generally harder and more heat-resistant because it is a natural stone. However, quartz is more resistant to chips and cracks due to the flexibility provided by its resin content.
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