Calcite is a commonly occurring mineral that exhibits several distinct physical properties:

Crystal Structure: Calcite belongs to the hexagonal crystal system and typically forms rhombohedral or scalenohedral crystals. It often occurs in well-formed crystals, but can also be found in massive or granular forms.
Hardness: Calcite has a Mohs hardness of 3, which means it is relatively soft compared to many other minerals. It can be easily scratched by harder substances such as a knife or quartz.
Color: Calcite is typically colorless or white, but it can also occur in various shades of gray, yellow, green, blue, or pink, depending on impurities present in the crystal lattice.
Transparency: Calcite crystals are often transparent to translucent, allowing light to pass through them.
Cleavage: Calcite exhibits perfect rhombohedral cleavage, meaning it can be easily cleaved into rhombohedrons. This cleavage is often evident in well-formed calcite crystals.
Luster: The luster of calcite is typically vitreous (glassy) to pearly when polished.
Specific Gravity: Calcite has a relatively low specific gravity, ranging from 2.6 to 2.8, depending on the purity of the specimen.
Double Refraction: One of the most distinctive optical properties of calcite is its ability to exhibit double refraction. This means that when a transparent calcite crystal is placed over a printed text or image, the text or image appears doubled.
These physical properties make calcite a fascinating mineral for both collectors and scientists, and it is widely used in various industrial applications, including construction, agriculture, and the manufacturing of lime and cement.

"Calcite is a powerful amplifier and cleanser of energy. It helps to clear stagnant energy within the body and environment, making it an excellent stone for cleansing and revitalizing the energy in any space. Calcite is also known for its ability to enhance mental clarity and promote inner peace. It can help to alleviate stress and anxiety, allowing one to feel more centered and balanced. Additionally, calcite is believed to stimulate creativity and enhance intuition, making it a valuable tool for those seeking inspiration or guidance. Whether used for meditation, healing, or simply as a decorative piece, calcite is a versatile and beneficial stone for promoting overall well-being."