BURKEITE


Meaning of BURKEITE in English

General Information:

Chemical Formula:

Na6(CO3)(SO4)2

Composition:

(Molecular Weight = 390.08 gm)

Sodium 35.36 % Na

Carbon 3.08 % C

Sulfur 16.44 % S

Oxygen 45.12 % O

Empirical Formula:

Na6(CO3)(SO4)2

Environment:

Continental evaporite deposits.

Locality:

Searles Lake, San Bernardino Co. California. Found in the lake clays as porphyroblastic crystals.

Name Origin:

Named for William Edmund Burke (1880-1966), chemical engineer, American Potash and Chemical Co., who discovered the artificial salt.

Physical Properties:

Cleavage:

[???] Indistinct

Color:

gray, gray white, white, light brown, or pink.

Density:

2.57

Diaphaniety:

Transparent

Habits:

Tabular - Form dimensions are thin in one direction., Massive - Uniformly indistinguishable crystals forming large masses., Nodular - Tuberose forms having irregular protuberances ove r the surface.

Hardness:

3.5 - Copper Penny

Luminescence:

Phosphorescent fluorescent.

Luster:

Vitreous - Greasy

Streak:

white

More details...

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