Burkeite

burkeite

northupite

sulphohalite

gaylussite

Formula: Na₄(SO₄)(CO₃)
Compound sulphate
Crystal System: Orthorhombic
Specific gravity: 2.57 measured, 2.61 calculated
Hardness: 3½
Streak: White
Colour: White, light buff, grayish; colourless in transmitted light
Solubility: Soluble in cold water
Environment:

Evaporite Deposits

Burkeite occurs in continental evaporite deposits. At Searles Lake, California, USA, it is associated with gaylussite, trona, sulphohalite, borax and northupite. At the Konya Basin, Central Anatolia, Turkey, burkeite occurs with halite and trona (Dana).

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