Minerals identify

Know how to recognize them

Triploidite

Phosphate mineral

Triploidite is an uncommon manganese phosphate mineral : (Mn. It crystallizes in the monoclinic and typically occurs as elongated and striated slender prisms which may be columnar to fibrous. Its crystals may be pinkish to yellowish brown or red-orange.

It was first described in 1878 for an occurrence in the Branchville Quarry, Branchville , Fairfield County, Connecticut. The name is derived from its resemblance to triplite

It typically occurs as a hydrothermal alteration product of primary phosphate minerals in granite pegmatites, lithiophilite, dickinsonite

It forms a solid solution series with the iron rich wolfeite

Identification

Color of mineral

Red
Brown
Pink
Yellow

The streak

White

Density ( specific gravity )

1.725
1.726
1.73

Luster ( interacts light )

Adamantine
Vitreous
Greasy

Crystal ( diaphaneity )

Monoclinic