Collection & photo: Roger Lang

Very nice translucent fluorite ball on a yellowish calcite crystal in a quartz geode in trapp basalt. The diameter of the large fluorite ball. 

From: Mahodari, Sinnar, Nashik District, Maharashtra, India

Color: Green, Blue, White, Yellow, Red, Black, Purple, Pink, Orange, Brown
Luster: Vitreous
Crystal system: Cubic crystal system
Chemical formula: CaF₂
Hardness (Mohs hardness scale): 4