Compare Minerals

Put any two minerals side by side — formula, structure, hardness, density and more. Type to search each slot.

Mineral A

Mineral B

Jentschite

Name

—

TlPbAs₂SbS₆

Formula

—

Mineral Species

Entry type

—

Sulfosalts

Chemical class

—

Monoclinic

Crystal system

—

2–2.5

Mohs hardness

—

5.24

Specific gravity

—

Dark red

Streak

—

Metallic to submetallic. Anisotropism: Distinct. R1 –R2: (470) 29.7–35.4, (543) 28.8–33.1, (587) 26.7–30.3

Luster

—

Perfect on {101}

Cleavage

—

P2_1/n

Space group

—

Structural group

—

Jts · Approved

IMA

—

1993

Named in

—

Black; in transmitted light, dark red with red internal reflections; pale gray in reflected light

Typical colors

—

Tl · Pb · As · Sb · S

Elements

—