Crystals are some of the most recognizable and fascinating objects in the natural world.
From the deep purple of amethyst to the pale pink of rose quartz, each crystal has its own formation story, physical properties, and characteristics that make it worth knowing.
Whether you are just starting your collection or looking to understand the crystals you already have, the articles in this collection cover the essentials in plain language.
What This Collection Covers
The Crystals collection covers how crystals form and what makes them different from other rocks and minerals, the most common crystals collectors encounter including amethyst, rose quartz, citrine, clear quartz, obsidian, and many others, how to identify crystals by color, luster, hardness, and crystal structure, how to care for and display your crystal collection, and the difference between natural and treated crystals. No prior knowledge is needed – these articles are written for anyone curious about crystals at any level.
Complete Guide
For a full overview of crystal types and their properties, our complete crystal guide covers the most important crystals in one place.
Frequently Asked Questions
What is the difference between a crystal and a rock?
A crystal has a highly ordered internal structure where atoms are arranged in a repeating pattern. This gives crystals their characteristic shapes and flat faces. Rocks are typically made up of multiple minerals and do not have this uniform internal structure. Quartz is a crystal. Granite is a rock made up of several minerals including quartz.
What are the most common crystals for beginners?
Amethyst, clear quartz, rose quartz, citrine, black tourmaline, and obsidian are among the most widely available and easiest to identify. They are affordable, widely available, and a good starting point for learning how to identify crystals by appearance and physical properties.
How do I identify a crystal I found?
Start with color, then look at the crystal’s luster – whether it appears glassy, metallic, or dull. Check the hardness by seeing if it scratches glass or is scratched by a coin. Look at the shape of any natural faces or cleavage planes. These four observations narrow down most common crystals significantly. Our identification articles walk through each step in detail.
Are crystals the same as gemstones?
Not exactly. Many gemstones are crystals – amethyst, emerald, and sapphire are all crystalline minerals. But not all crystals are gemstones. A gemstone is a mineral that has been cut and polished for use in jewelry or decoration and is valued for its beauty and rarity. A crystal is defined by its internal atomic structure, not its value or use.
How do I care for my crystal collection?
Most crystals can be cleaned with warm water and a soft cloth. Avoid harsh chemicals and prolonged sun exposure as some crystals like amethyst and rose quartz can fade in direct sunlight. Store softer crystals separately from harder ones to prevent scratching. Display them away from direct heat sources and handle them carefully as many crystals have natural cleavage planes where they can split.