Silicon carbide 4cm Weight- 37g62gYou will receive

4cm Weight- 37g62gYou will receive the item in the photo

Orange calcite point Size-5

Minearl class- calcium fluoride

Merlinite dendritic opal from Brazil

Holmquistite is a rare lithium bearing mineral known for its distinctive properties and specific geologic occurrence

Silicon carbide 4cm Weight- 37g62gYou will receiveSilicon Carbide ( Carborundum) Mineral Rough Size 8cm x 7. 4cm x 5cm Weight 380g You will receive the item in the photo Silicon carbide is a super hard synthetic ceramic primarily produced in electric arc furnaces using high purity silica Sand and petroleum coke. In nature it appears as the extremely rare mineral moissanite, which is found almost exclusively in meteorites and upper mantle igneous rocks. Crystal system: there are over 200 different