Franklinite | Franklin, NJ polished high- silica purity and a

high- silica purity and a brilliant

caused by natural mineralization that highlights the delicate structure of the plant

each featuring their own unique characteristics

Formed through the layering of ancient sediments

it has a Mohs hardness of about 5

Franklinite | Franklin, NJ polished high- silica purity and aFranklinite is a dense, black, metallic zinc iron manganese oxide mineral belonging to the spinel group. Found in Franklin and Sterling Hill, New Jersey, it is now the official state mineral of New Jersey. It typically forms octahedral crystals, is weakly to moderately magnetic and has a Mohs hardness of 5. 56. 5. These specimen fluoresce beautifully under blacklight, making them incredibly unique! This item is 2. 5 x 2 x 2 and weighs 9. 05 oz