Aragonite is a carbonate mineral, specifically a polymorph of calcium carbonate (CaCO₃), and belongs to the aragonite group within the class of carbonates. The mineral is characterized by its orthorhombic crystal system, which can form various habits, such as prismatic, acicular, or columnar crystals. Aragonite is known for its diverse range of colors, including white, colorless, yellow, blue, green, and even brown or reddish hues, and exhibits a vitreous luster with a transparent to translucent appearance.

Usage

Aragonite has a variety of uses, including its application in the manufacturing of cement and as a component in the production of lime for agricultural purposes. The mineral is also used in aquariums to provide a stable pH balance and as a substrate for marine life. Additionally, aragonite can be found in various ornamental and decorative items, such as carved figurines and intricate sculptures, due to its appealing colors and crystal forms.

Gemstone

While aragonite is not typically considered a mainstream gemstone, its unique colors and crystal habits make it a fascinating choice for collectors and enthusiasts. However, due to its relatively low hardness and brittle nature, aragonite is less suitable for everyday wear in jewelry and requires careful handling to prevent damage.

Origin

Aragonite forms in nature through various geological processes, including the precipitation of calcium-rich waters in hot springs, caves, and marine environments. The mineral can also form as a result of biological processes, such as the formation of shells and exoskeletons in marine organisms, which later become preserved in sedimentary rock formations.

Occurrence

Aragonite can be found in various geological settings worldwide, with notable occurrences in Spain, Italy, Mexico, and the United States. The mineral is often associated with other carbonate minerals, such as calcite and dolomite, as well as gypsum, sulfur, and quartz. Aragonite can also be found lining the walls of caves, as the mineral is a common constituent of stalactites and stalagmites.

Metaphysical

In metaphysical and spiritual practices, aragonite is believed to possess grounding and stabilizing properties, promoting a sense of balance and emotional well-being. The mineral is said to help individuals release stress and tension, encouraging patience and acceptance. Aragonite is also thought to stimulate personal growth, self-confidence, and the ability to overcome obstacles, making it an excellent choice for those seeking emotional and spiritual support.

Class	Carbonates
Formula	CaCO3
Luster	Vitreous
Hardness (Mohs)	3.5 – 4
Streak	White
Color	Colorless, white, yellow, blue, green, brown, reddish
Cleavage	Distinct in one direction, poor in another
Specific Gravity	2.94