The open encyclopedia of minerals
GlossaryCite the database
Mineralogist.org
Minerals A–ZSearchCollectionsBrowse by PropertyIdentify a SpecimenCompare MineralsLocalities MapGlossaryContribute Search the Database →

Compare Minerals

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

VS
Melanotekite
Melanotekite
Name
—
Pb₂Fe³⁺₂O₂(Si₂O₇)
Formula
—
Mineral Species
Entry type
—
Silicates
Chemical class
—
Orthorhombic
Crystal system
—
6.5
Mohs hardness
—
5.73–6.28
Specific gravity
—
Greenish gray
Streak
—
Metallic to greasy
Luster
—
In two directions, one more prominent
Cleavage
—
Pbcn
Space group
—
—
Structural group
—
Mtk · Grandfathered
IMA
—
1880
Named in
—
Black, Gray
Typical colors
—
Pb · Fe · O · Si
Elements
—