Schieffelinite

schieffelinite

rodalquilarite

empressite

bromargyrite

Images

Formula: Pb₁₀Te⁶⁺₆O₂₀(OH)₁₄(SO₄)(H₂O)₅
Tellurate
Crystal System: Orthorhombic
Specific gravity: 4.98 measured, 5.15 calculated
Hardness: 2
Streak: White
Colour: Colourless, milk-white
Solubility: Soluble in cold, dilute acids
Environments

Hydrothermal environments

Schieffelinite occurs in the oxidised zone of tellurium-bearing hydrothermal precious metal deposits, associated with rodalquilarite, bromargyrite, gold, pyrite, empressite, goethite and quartz (HOM).

Localities

At the type locality, the Joe Mine, Tombstone Mining District, Cochise County, Arizona, USA, schieffelinite occurs in quartz gangue with rodalquilarite, bromargyrite and gold. The schieffelinite formed by oxidation of the original tellurides. It occurs as minute colourless crystals up to 1 mm in size, encrusting fractures (MM 43.771-773).
Schieffelinite from the Joe Mine - Image

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