In order to choose the right crystal for you, it's important to really understand the nitty-gritty on how crystals work. Each and every crystal has its own unique benefits and holds its own energetic frequency based on its molecular structure. Crystals are mined from all over the world, and so different landscapes and climates will affect this molecular composition and the energies each crystal radiates.
To keep it simple, the energetic frequency of each crystal will connect with our own energetic pathways (also known as our aura or chakras), clear areas of stagnation, and heal us from the inside out.
At different points throughout our lives, we will connect with different crystals. Though no matter what you're going through, there's a crystal that will support you on a mental, physical, and spiritual level. The most important thing to consider when buying a crystal is that it's ethically mined and sourced. While some crystals are more expensive than others, quality over quantity is definitely a rule to stick by.