Scapolite

Scapolite – (Na,Ca)₄(Al,Si)₁₂O₂₄(Cl,CO₃)

Elements: Sodium, Calcium, Aluminum, Silicon, Oxygen, Chlorine, Carbon

Class: Silicates – Tectosilicates (Scapolite Group)

Crystal System: Tetragonal

Hardness: 5-6

Orthoclase

Talc (1)Diamond (10)

About as hard as a steel knife blade.

Origin: Merelani Hills Manyara Region – Tanzania

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