Minerals identify

Know how to recognize them

Parthéite

Tectosilicate

Partheite or parthéite is a calcium aluminium silicate and a member of the zeolite , a group of silicates with large open channels throughout the crystal structure, which allow passage of liquids and gasses through the mineral. It was first discovered in 1979 in rodingitic zone of the Taurus Mountains The second discovery occurred in gabbro, Russia Since its discovery and naming, the chemical formula for partheite has been revised from CaAl2Si2O8•2H2O to include not only water but hydroxyl The framework of the mineral is interrupted due to these hydroxyl groups attaching themselves to aluminum centered oxygen This type of interrupted framework is known in only one other zeolite, the mineral roggianite As a silicate based mineral with the properties of a zeolite, partheite was first described as zeolite-like in 1984 and listed as a zeolite in 1985. Partheite and lawsonite. Associated minerals include prehnite , augite

Identification

Color of mineral

White

Mohs scale ( mineral hardness )

4

The streak

White

Density ( specific gravity )

1.547
1.549
1.559

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Monoclinic