Cassiterite
Discovery
Cassiterite was discovered in 1803 by William Gregor.
Physical Properties
- Color: Dark brown, black, yellow, red, white, or gray
- Crystal System: Tetragonal
- Cleavage: Poor in one direction
- Fracture: Conchoidal to uneven
- Hardness: 6-7 on the Mohs scale
- Luster: Adamantine to submetallic
- Streak: White, gray, or brown
- Tenacity: Brittle
Optical Properties
- Refractive Index: 1.997-2.099
- Birefringence: 0.060-0.095
- Dispersion: 0.071
- Pleochroism: Weak
Occurrence by Country
Cassiterite is found in the following countries:
- China
- Indonesia
- Bolivia
- Peru
- Rwanda
- Nigeria
- Malaysia
- Thailand
- Democratic Republic of the Congo
- Zimbabwe
- United Kingdom
Healing Properties
Cassiterite is believed to have the following healing properties:
- Calming energy
- Enhances intuition
- Helps with decision-making
- Helps with problem-solving
- Helps with manifestation
Uses
Cassiterite is used for the following:
- As an ore of tin
- In the production of tinplate
- In the manufacture of surgical instruments and other metallic objects
- As a gemstone
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