You will recieve the sphere of the pictures
Formula:CaCO3
Colour:White, Yellow, Red, Orange, Blue, Green, Brown, Gray etc.
Lustre:Vitreous, Sub-Vitreous, Resinous, Waxy, Pearly
Hardness:3
Specific Gravity:2.7102
Crystal System:Trigonal
Member of:Calcite Group
Name:Ancient name. Named as a mineral by Gaius Plinius Secundus (Pliny the elder) in 79 from Calx, Latin for Lime.
Polymorph of:Aragonite, Unnamed (Monoclinic Polymorph of Calcium Carbonate), Vaterite
Calcite Group. Calcite-Rhodochrosite Series.
A very common and widespread mineral with highly variable forms and colours.
Calcite is best recognized by its relatively low Mohs hardness (3) and its high reactivity with even weak acids, such as vinegar,
plus its prominent rhombohedral cleavage in most varieties.
