Botryoidal Fluorite And Calcite On Chalcedony (India)

Botryoidal Fluorite And Calcite On Chalcedony (India) Mineral: Fluorite, Calcite and Chalcedony Origin: Khadakwani Mines, Khargaon District, Madhya Pradesh, India Color: Yellow Fluorescence: Faint Yellow  Treatment: None Approximate Dimensions: 5.2cm x 6.5cm x 3.2cm Weight: 151g   10% of this purchase will be donated to The Wildlife Protection Society Of India (WPSI)   Fluorite is calcium fluoride and crystallizes in the cubic system, forming most often as cubes and octahedra. Sometimes fluorite is cut as gemstones, but mainly for collectors, as the hardness (4 on the Mohs’s scale) is very low, making the stones too soft and fragile to be used in most jewelry. Fluorite ranges in color from colorless to yellow, brown, orange, green, blue, violet and pink and is typically transparent to semi-transparent with color zoning being very common. Fluorite is a widely occurring mineral, and gem quality specimens are found in many places, including: Germany, Austria, Switzerland, Norway, Mexico,