This page mentions mineral collecting, mineral storage, labeling, and proper care for minerals.
Many collectors save any mineral type they find.
They try to have as many minerals in their collection as they can. Since there are over 3,000 minerals, and each one has variances, they will never reach the goal of having every mineral. No collection in the world is close to complete. A collection method known as specialized collecting is used by many collectors throughout the world. These groups compromise minerals that have some similar characteristics.