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Calcite Crystals

Calcite is a remarkably versatile and widely distributed mineral, celebrated for its diverse crystal forms, vibrant colors, and unique optical properties. Composed of calcium carbonate (CaCO₃), calcite crystallizes in the trigonal system and is the most stable polymorph of calcium carbonate.

Calcite crystals exhibit a stunning variety of habits, including rhombohedra, scalenohedra, and prismatic forms. Its appearance ranges from transparent to translucent, with a vitreous to pearly luster. Found in virtually every color of the spectrum, calcite varieties include:

Clear Calcite (Iceland Spar): Known for its striking clarity and double refraction property, Iceland spar is highly sought after for its optical uniqueness.
Orange Calcite: A warm, glowing variety associated with creativity and energy.
Green Calcite: Revered for its calming green hues, often linked to emotional healing.
Blue Calcite: A soothing sky-blue variety, valued for its tranquil energy.
Pink Mangano Calcite: A soft pink variety, linked to the heart chakra and emotional balance.
Golden Calcite: With its warm, honey-like hues, this variety exudes positivity and abundance.
Calcite has a relatively low hardness of 3 on the Mohs scale, making it more delicate than quartz or other commonly collected minerals. Its perfect cleavage allows it to split into rhombohedral fragments, showcasing its characteristic shape.

One of calcite’s most fascinating features is its fluorescence under ultraviolet light, which can range from red to blue depending on the impurities present. It also exhibits birefringence, or double refraction, making it a favorite among collectors and scientists alike.

Calcite is found in an incredible range of geological environments, from sedimentary rocks like limestone to hydrothermal veins and caves, where it forms stunning stalactites and stalagmites. Its aesthetic appeal, geological significance, and metaphysical properties make calcite crystals highly valued in collections, decor, and spiritual practices worldwide.