Avika Natural Calcite Gemstone Sphere/Balls

DISCLAIMER: No claims are made on metaphysical properties of this stone. These literature is collected from writings, books, folklore and various sources. The actual product may slightly vary from picture as these are natural stone and no two stones can same in pattern.

Chemical Formula CaCO3 Composition Calcium carbonate, sometimes with impurities of iron, magnesium, or manganese, and occasionally zinc and cobalt. Variable Formula (Ca,Fe,Mg,Mn,Zn,Co)CO3 Color Colorless, white, yellow, brown, orange, pink, red, purple, blue, green, gray, black. May also be multicolored or banded. Streak White Hardness 3 Crystal System Hexagonal Crystal Forms and Aggregates Occurs in a great variety of shapes, with the most common forms asrhombohedral and scalenohedralcrystals. Crystals may be tabular, acicular, prismatic, flaky, and needle-like. May occur as bundles ofscalenohedrons, intergrown rhombohedrons, hair-like masses of acicular crystals, grainy, stalactitic,fibrous, massive, and earthy. Scalenohedral twinning is common. Transparency Transparent to opaque Specific Gravity 2.7 Luster Vitreous Cleavage 1,3 - rhombohedral Fracture Conchoidal. Rarely observed due to the perfect cleavage. Tenacity Brittle Other ID Marks 1) Commonly fluorescent; specimens from different localities fluoresce different colors. Some Calcite is also phosphorescent. 2) Transparent crystals exhibit strong double refraction. 3) May be thermoluminescent. Complex Tests 1) Effervescent in hydrochloric acid and most other acids. 2) Calcite that doesn't fluoresce usually becomes fluorescent upon heating. In Group Carbonates; Calcite Group Striking Features Hardness, cleavage, fluorescence, and effervescence with hydrochloric acid. Environment Calcite is a constituent of all mineral environment, including sedimentary, igneous, and metamorphic. Rock Type Igneous, Sedimentary, Metamorphic Popularity (1-4) 1 Prevalence (1-3) 1 Demand (1-3) 1