Altaite
Altaite from New Mexico
General
Chemical formula	PbTe
Identification
Molecular Weight	334.8 g/mol
Color	tin white to yellowish white; tarnishing to bronze yellow
Crystal habit	include cubic and octahedral crystals; but much more commonly found in massive and granular forms
Crystal system	Isometric
Cleavage	perfect in three directions forming cubes
Fracture	Uneven
Mohs Scale hardness	2.5 - 3
Luster	metallic
Streak	Black
Specific gravity	8.2 - 8.3

Altaite also known as lead telluride is a yellowish white mineral with an isometric crystal structure. Altaite is in the galena group of minerals as it shares many of properties of galena. Altaite has an unusually high density for a light colored mineral. Altaite and other rare tellurides are classified in the sulfide mineral class (Dana classification).

Altaite was discovered in 1845 in the Altai Mountains. Besides these mountains altaite can also be found in Zyrianovsk, Kazakhstan; the Ritchie Creek Deposit in Price County, Wisconsin; the Koch-Bulak gold deposit in Kazakhstan; Moctezuma, Mexico; and Coquimbo, Chile among other locations.

See also

List of minerals

References

• Mindat data with locations
• Webmineral data