Health coverage plus a fund. An Aetna HealthFundÂ® Health Reimbursement Arrangement (HRA)* gives you access to quality care. And it helps you stretch your health care dollars. Our HRA combines an Aetna health insurance or benefits plan with a fund paid for by your employer. This fund helps you pay eligible out-of-pocket health care costs.
Amethyst, a variety of quartz. A mineral is a naturally occurring chemical compound, usually of crystalline form and abiogenic in origin. A mineral has one specific chemical composition, whereas a rock can be an aggregate of different minerals or mineraloids. The study of minerals is called mineralogy.
Minerals are substances that are formed naturally in the Earth. Minerals are usually solid, inorganic, have a crystal structure, and form naturally by geological processes. The study of minerals is called mineralogy. A mineral can be made of single chemical element or more usually a compound. There are over 4,000 types of known minerals.