Photo: Jyrki Autio · CC0

Sorosilicate mineral

Properties

Chemical formula

Y₂Si₂O₇

Group

Silicates

Crystal system

Monoclinic

Hardness (Mohs)

—

Color

Green

Luster

—

Streak

—

Density

—

Cleavage

—

Fracture

—

Tenacity

—

Crystal habit

—

Transparency

—

Space group

P2₁/m

Fluorescence

—

Magnetism

—

Radioactivity

—

Refractive index

—

Optical character

—

Birefringence

—

Pleochroism

—

Strunz classification

9.BC.05

Dana classification

55.2.1b.3

IMA status

Renamed mineral (Rn)

IMA symbol

Ytt-Y

Locality

—

Type locality

—

Discovery year

—

Source: Wikidata